CUMINGIANOSIDE D

A triterpenoid saponin that is 13,30-cyclodammar-25-ene-3,7,23,24-tetrol esterified to the corresponding acetate at position 3 and attached to a 6-O-acetyl-beta-D-glucopyranosyl residue at position 7 via a glycosidic linkage. Isolated from Dysoxylum cumingianum, it exhibits antileukemic activity.


CUMINGIANOSIDE E

A triterpenoid saponin that is 24,25-epoxy-13,30-cyclodammarane-3,7,23-triol esterified to the corresponding acetate at position 3 and attached to a 6-O-acetyl-beta-D-glucopyranosyl residue at position 7 via a glycosidic linkage. Isolated from Dysoxylum cumingianum it exhibits antileukemic activity.


cumingianoside F

A triterpenoid saponin that is 24,25-epoxy-13,30-cyclodammarane-3,7,23-triol attached to a 6-O-acetyl-beta-D-glucopyranosyl residue at position 7 via a glycosidic linkage. Isolated from Dysoxylum cumingianum it exhibits antileukemic activity.


curtisian A

A para-terphenyl that consists of 1,4-diphenylbenzene substituted by acetyloxy groups at positions 3', 5' and 6', hydroxy groups at positions 4 and 4'' and a benzyloxy group at position 2'. It is isolated from the fruit body of the mushroom Paxillus curtisii and exhibits radical scavenging activity.


curtisian B

A para-terphenyl that consists of 1,4-diphenylbenzene substituted by acetyloxy groups at positions 3', 5' and 6', hydroxy groups at positions 4 and 4'' and a (3-phenylpropanoyl)oxy group at position 2'. It is isolated from the fruit body of the mushroom Paxillus curtisii and exhibits radical scavenging activity.


curtisian C

A para-terphenyl that consists of 1,4-diphenylbenzene substituted by acetyloxy group at position 3', hydroxy groups at positions 4 and 4'' a (3-hydroxybutanoyl)oxy group at position 6' and [3-(acetyloxy)butanoyl]oxy groups at positions 2' and 5' respectively. It is isolated from the fruit body of the mushroom Paxillus curtisii and exhibits radical scavenging activity.


curtisian D

A para-terphenyl that consists of 1,4-diphenylbenzene substituted by acetyloxy groups at positions 5' and 6', hydroxy groups at positions 4 and 4'', a (3-phenylpropanoyl)oxy group at position 3' and a (3-hydroxybutanoyl)oxy group at position 2'. It is isolated from the fruit body of the mushroom Paxillus curtisii and exhibits radical scavenging activity


LUPEOL

A pentacyclic triterpenoid that is lupane in which the hydrogen at the 3beta position is substituted by a hydroxy group. It occurs in the skin of lupin seeds, as well as in the latex of fig trees and of rubber plants. It is also found in many edible fruits and vegetables.


Cuscuta propenamide 1

An enamide obtained by the formal condensation of 4-methoxyphenylethylamine with trans-caffeic acid. It is isolated from Cuscuta reflexa and displays strong inhibitory activity against alpha-glucosidase (EC 3.2.1.20).


Cuscuta propenamide 2

An enamide obtained by the formal condensation of ferulic acid with 2-(4-butylphenyl)ethanamine. It is isolated from Cuscuta reflexa and displays strong inhibitory activity against alpha-glucosidase (EC 3.2.1.20).


CYATHUSAL A

An organic heterotricyclic compound that is 1H,6H-pyrano[4,3-c]isochromene-7-carbaldehyde substituted by hydroxy groups at positions 9 and 10, methoxy group at position 8, oxo group at position 1 and a propenyl group at position 3. It is isolated from the fermented mushroom Cyathus stercoreus and exhibits radical scavenging activities.


CYATHUSAL B

An organic heterotricyclic compound that is 1H,6H-pyrano[4,3-c]isochromene-7-carbaldehyde substituted by hydroxy groups at positions 6, 9 and 10, methoxy group at position 8, oxo group at position 1 and a propenyl group at position 3. It is isolated from the fermented mushroom Cyathus stercoreus and exhibits radical scavenging activities.


CYATHUSAL C

An organic heterotricyclic compound that is 1H,6H-pyrano[4,3-c]isochromene-7-carbaldehyde substituted by hydroxy groups at positions 9 and 10, methoxy group at position 8, oxo group at position 1, a propan-2-yloxy group at position 6 and a propenyl group at position 3. It is isolated from the fermented mushroom Cyathus stercoreus and exhibits radical scavenging activities.


CYCLOMONTANIN A

A  homodetic cyclic peptide composed of L-alanyl, L-tryptophyl, L-threonyl, L-prolylglycyl, L-leucyl and L-asparaginyl residues linked in a sequence. It is isolated from the seeds of Annona montana and has been shown to exhibit anti-inflammatory activity.


CYCLOMONTANIN C

A homodetic cyclic peptide composed of L-asparaginyl, L-phenylalanyl, L-prolyl, L-threonyl, L-histidyl and L-valyl residues linked in a sequence. It is isolated from the seeds of Annona montana and has been shown to exhibit anti-inflammatory activity.


CYCLOMONTANIN D

A homodetic cyclic peptide composed of L-alanyl, Lasparaginyl, L-prolylglycyl, L-leucyl, L-prolyl and L-tyrosyl residues linked in a sequence. It is isolated from the seeds of Annona montana and has been shown to exhibit anti-inflammatory activity.


CYLINDOL A

A benzoate ester that is methyl 4-hydroxybenzoate bearing a 2-hydroxy-5-(methoxycarbonyl)phenoxy group at position 3. It is isolated from the rhizomes of Imperata cylindrica and has been found to exhibit inhibitory activity against 5-lipoxygenase.


CYSTODYTIN D

An alkaloid that is an enamide obtained by the formal condensation of 3-methylbut-2-enoic acid with 6-(2-amino-1-hydroxyethyl)-4H-pyrido[2,3,4-kl]acridin-4-one. It is isolated from the Okinawan marine tunicate Cystodytes dellechiajei and exhibits cytotoxicity against human epidermoid carcinoma KB cells.


CYSTODYTIN E

An alkaloid that is an enamide obtained by the formal condensation of tiglic acid with 6-(2-amino-1-hydroxyethyl)-4H-pyrido[2,3,4-kl]acridin-4-one. It is isolated from the Okinawan marine tunicate Cystodytes dellechiajei and exhibits cytotoxicity against human epidermoid carcinoma KB cells


CYSTODYTIN F

An alkaloid that is an enamide obtained by the formal condensation of 3-methylbut-2-enoic acid with 6-(2-amino-1-methoxyethyl)-4H-pyrido[2,3,4-kl]acridin-4-one. It is isolated from the Okinawan marine tunicate Cystodytes dellechiajei and exhibits cytotoxicity against human epidermoid carcinoma KB cells.


CYSTODYTIN G

An alkaloid that is an enamide obtained by the formal condensation of tiglic acid with 6-(2-amino-1-methoxyethyl)-4H-pyrido[2,3,4-kl]acridin-4-one. It is isolated from the Okinawan marine tunicate Cystodytes dellechiajei and exhibits cytotoxicity against human epidermoid carcinoma KB cells


CYSTODYTIN H

An  alkaloid ester obtained by formal condensation of cystodytin D with elaidic acid. It is isolated from the Okinawan marine tunicate Cystodytes dellechiajei and exhibits cytotoxicity against human epidermoid carcinoma KB cells.


CYSTODYTIN I

An alkaloid ester obtained by formal condensation of the hydroxy group of cystodytin E with the carboxy group of elaidic acid. It is isolated from the Okinawan marine tunicate Cystodytes dellechiajei and exhibits cytotoxicity against human epidermoid carcinoma KB cells.


cystothiazole A

An  organonitrogen heterocyclic antibiotic that is 2,4'-bi-1,3-thiazole substituted by an isopropyl group at position 2' and a 3,5,7-trimethoxy-4-methyl-7-oxohepta-1,5-dien-1-yl group at position 4 (the 2E,4R,5S,6E stereoisomer). It is isolated from the culture broth of myxobacterium, Cystobacter fuscus, and exhibits antifungal and cytotoxic activity.


CYTONIC ACID A

A benzoate ester obtained by the formal condensation of the hydroxy group at position 4 of 4-[(2,4-dihydroxy-6-propylbenzoyl)oxy]-2-hydroxy-6-propylbenzoic acid with the carboxy group of 2,4-dihydroxy-6-pentylbenzoic acid (olivetolic acid). It is isolated from the endophytic fungi Cytonaema and acts as an inhibitor of human cytomegalovirus (hCMV) protease.


CYTONIC ACID B

A benzoate ester obtained by the formal condensation of the carboxy group of 4-[(2,4-dihydroxy-6-propylbenzoyl)oxy]-2-hydroxy-6-propylbenzoic acid with the 4-hydroxy group of 2,4-dihydroxy-6-pentylbenzoic acid (olivetolic acid). It is isolated from the endophytic fungi Cytonaema and acts as an inhibitor of human cytomegalovirus (hCMV) protease.


CYTOSPORIC ACID

A monocarboxylic acid that is 3,8-dimethyl-5-oxo-1,2,3,4,4a,8a-hexahydronaphthalene-1-carboxylic acid substituted by a (2R)-hexan-2-yl at position 7, a hydroxy group at position 6 and a 3-hydroxypropanoyl group at position 8. It is a fungal metabolite produced by Cytospora with HIV-1 integrase inhibitory activity.


L-lupinic acid

The L-enantiomer of lupinic acid.


cytotrienin A

A 21-membered macrocyclic lactam which contains three conjugated double bonds as part of the ring system. It acts as an apoptosis inducer in human leukemia HL-60 cells and is isolated from  Streptomyces sp.


DAEDALIN A

A chromenol that is 2H-chromen-6-ol substituted at position 2 by a hydroxymethyl and a methyl group ( the 2R stereoisomer). Isolated from the mycelial culture broth of Daedalea dickinsii, it exhibits tyrosinase inhibitory and radical scavenging activities.


A tetracyclic triterpenoid that is dammarane with an exocyclic double bond at C-25 and substituent hydroxy groups at positions 3, 6, 12, 20, 22 and 24 (the  3beta,6alpha,12beta,24S stereoisomer). It is isolated from the leaves of Panax ginseng and exhibits cytotoxicity in the human hepatoma cell line, HepG2.


9-deacetoxyfumigaclavine C

An  ergot alkaloid that is ergoline substituted by a 2-methylbut-3-en-2-yl group at position 2 and methyl groups at positions 6 and 8 (the 8beta stereoisomer). It is isolated from an endophytic fungus, Aspergillus fumigatus, and exhibits potent cytotoxicity against human leukemia cells (K562).


15-O-deacetylnimbolidin B

A tricyclic triterpenoid that is isolated from Melia azedarach and exhibits anticancer activity.


12-O-deacetyltrichilin H

A limonoid isolated from the ripe fruits of Melia azedarach.


decatromicin A

A carbohydrate-containing antibiotic isolated from Actinomadura sp. MK73-NF4. It specifically inhibits the growth of gram-positive bacteria including multi-drug resistant strains such as Staphylococcus aureus MS9610 and menthicilin-resistant S.aureus (MRSA).


C-2'-decoumaroyl-aloeresin G

A member of the class of chromones that is chromone substituted by a methoxy group at position 7, a methyl group at position 5, a propenyl group at position 2 and a  beta-D-glucopyranosyl residue at position 8 via a C-glycosidic linkage. It has been isolated from Aloe vera.


DECUSSATIN

A member of the class of  xanthones that is xanthone substituted by a hydroxy group at position 1 and methoxy groups at positions 1, 2 and 6. It has been isolated from Centaurium erythraea and Gentiana verna.


A 3beta-sterol having a 5alpha-ergostane skeleton with double bonds at C-6, C-9(11), C-22 and C-25 and a peroxy group between positions 5 and 8. An antineoplastic agent isolated from Okinawan sponge of the genus Axinyssa.


A cardenolide glycoside that is the 7,8-dehydroderivative of cerberin. Isolated from Cerbera manghas, it exhibits cytotoxic activity.


dehydrodiconiferyl dibenzoate

A lignan that is 2,3-dihydro-1-benzofuran substituted by a (benzoyloxy)methyl group at position 3, a 4-hydroxy-3-methoxyphenyl group at position 2, a methoxy group at position 7 and a 3-(benzoyloxy)prop-1-en-1-yl group at position 5. It is isolated as a racemate from Euterpe precatoria and exhibits antiplasmodial activity.


An indole alkaloid that is the 1,2-dehydro derivative of geissoschizoline. Isolated from Geissospermum sericeum, it exhibits antiplasmodial activity.


demethoxycurcumin

A beta-diketone that is curcumin in which one of the methoxy groups is replaced by hydrogen. It is found in Curcuma zedoaria and Etlingera elatior.


(-)-demethoxylpinoresinol

A lignane that is the demethoxy derivative of (-)-pinoresinol. Isolated from Balanophora abbreviata, it exhibits inhibitory activity against nitric oxide synthase.


O-demethylbuchenavianine

A piperidine alkaloid that consists of 5,7-dihydroxyflavone attached to a 1-methylpiperindin-2-yl moiety at position 8. It is a flavonoid alkaloid isolated from Buchenavia capitata, and has been shown to exhibit anti-HIV activity.


lupulone

A beta-bitter acid in which the acyl group is specified as 3-methylbutanoyl.


A pyridoisoquinoline consisting of (1'beta)-emetan substituted by hydroxy groups at positions 6' and 7' and methoxy groups at positions 10 and 11. It is isolated from Psychotria klugii and exhibits antileishmanial activity.


BULBINELONESIDE D

An anthraquinone that is  knipholone in which the O-methyl group is replaced by a beta-D-glucopyranosyl group. It is isolated from the roots of Bulbine frutescens and exhibits trypanocidal and antiplasmodial activities.


A member of the class of xanthones consisting of paxanthonin in which the methoxy group at position 5 is replaced by a hydroxy group. Isolated from the roots of Hypericum roeperianum and leaves of Hypericum styphelioides, it exhibits antioxidant and antifungal activities.


dendrocandin C

A diphenylethane that is 1,2-dihydrostilbene substituted by hydroxy groups at positions 3, 4 and 4' and methoxy groups at C-5 and alpha-position respectively (the S stereoisomer). It is isolated from the stems of Dendrobium candidum and exhibits antioxidant activity.


dendrocandin D

A diphenylethane that is 1,2-dihydrostilbene substituted by hydroxy groups at positions 3, 4 and 4', a methoxy group at position 5 and an ethoxy group at alpha-position (the S stereoisomer). It is isolated from the stems of Dendrobium candidum and exhibits antioxidant activity.


dendrocandin E

A diphenylethane that is 1,2-dihydrostilbene substituted by hydroxy groups at positions 3, 3', 4 and 4' and a methoxy group at position 5. It is isolated from the stems of Dendrobium candidum and exhibits antioxidant activity.


5-deoxyglyasperin F

A hydroxyisoflavanone  that is 2,3-dihydro-2'H,4H-3,8'-bichromen-4-one substituted by hydroxy groups at positions 5' and 7 and geminal methyl groups at position 2'. Isolated from the roots of Erythrina lysistemon, it exhibits anti-HIV activity.


A phorbol ester that consists of 12-deoxyphorbol esterified at position 13 by deca-3,5-dienoic acid (the 3E,5E stereoisomer). It is obtained from the leaves and stems of Excoecaria agallocha and exhibits anti-HIV activity.


desacetylpyramidaglain D

A flavagline with a cyclopenta[bc]benzopyran skeleton isolated from the leaves of Aglaia forbesii. It exhibits antitubercular and antiviral activity.


6-desmethyl-N-methylfluvirucin A1

A lactam that is 4-hydroxyazacyclotetradecan-2-one substituted by an ethyl group at position 11, a methyl group at position 3 and a 3,6-dideoxy-3-(methylamino)-alpha-L-talopyranosyl moiety at position 4 via a glycosyl linkage (the 3R,4S,11S stereoisomer). It is isolated from the fermentation broth of Nonomuraea turkmeniaca MA7364 and exhibits anthelminthic activity.


N-methylfluvirucin A1

A lactam that is 4-hydroxyazacyclotetradecan-2-one substituted by an ethyl group at position 11, methyl group at positions 3 and 7 and a 3,6-dideoxy-3-(methylamino)-alpha-L-talopyranosyl moiety at position 4 via a glycosyl linkage (the 3R,4S,7R,11S stereoisomer). It is isolated from the fermentation broth of Nonomuraea turkmeniaca MA7364 and exhibits anthelminthic activity.


3,5-di-O-caffeoyl quinic acid

A carboxylic ester that is the diester obtained by the condensation of the hydroxy groups at positions 3 and 5 of (-)-quinic acid with the carboxy group of trans-caffeic acid. Isolated from Brazilian propolis and Suaeda glauca, it exhibits hepatoprotective and cytotoxic activities.


A tetracyclic triterpenoid that is 29-nordammara-1,17(20)-diene substituted by acetoxy groups at positions 6 and 16, a carboxy group at position 21, a hydroxy group at position 25 and oxo groups at positions 3 and 7 respectively. It is isolated from the marine-derived fungal strain  Aspergillus sydowii PFW1-13 and exhibits antibacterial activity.


An ent-kaurane diterpenoid that is ent-kaur-16-en-18-oic acid substituted by a beta-L-3',5'-diacetoxy-arabinofuranosyl moiety at position 18 via a glycosidic linkage. It is isolated from the whole herb of Sagittaria pygmaea and exhibits antibacterial activity against the oral pathogens.


diandraflavone

A C-glycosyl compound that is flavone substituted by hydroxy group at position 5, a methoxy group at position 7, a beta-D-glucopyranosyloxy group at position 4' and a beta-D-oliopyranosyl moiety at position 6. Isolated from Drymaria diandra, it exhibits natioxidant activity.


DIANVERSICOSIDE A

A pentacyclic triterpenoid saponin isolated from the aerial parts of  Dianthus versicolor. It has been shown to exhibit cytotoxic activity against a panel of cancer cell lines.


DIANVERSICOSIDE B

A pentacyclic triterpenoid saponin isolated from the aerial parts of Dianthus versicolor. It has been shown to exhibit cytotoxic activity against a panel of cancer cell lines.


DIBROMOPHAKELLIN

An alkaloid isolated from the marine sponge Phakellia flabellata and Acanthella costata. It acts as an  alpha2B adrenoceptor agonist.


A ring assembly that consists of 2,2'-bifuran substituted by butoxy groups at positions 5 and 5' respectively. It is isolated from the aerial parts of Chrysanthemum coronarium and acts as an inhibitor of human AcylCoA:cholesterol acyltransferase hACAT-1 and hACAT-2.


DICERANDROL A

A biaryl that is 5,5',7,7',9,9',10a,10a'-octahydro-6H,6'H-2,2'-bixanthene substituted by acetoxy groups at C-5 and C-5', hydroxy groups at C-1, C-1', C-8 and C-8', hydroxymethyl groups at C-10a and C-10a', methyl groups at C-6 and C-6' and oxo groups at C-9 and C-9' respectively. A dimeric tetrahydroxanthone derivative isolated from Phomopsis longicolla, it exhibits antibacterial and cytotoxic activities.


DICERANDROL B

A biaryl that is 5,5',7,7',9,9',10a,10a'-octahydro-6H,6'H-2,2'-bixanthene substituted by acetyloxy groups at C-5 and C-5', (acetyloxy)methyl group at C-10a, hydroxy groups at C-1, C-1', C-8 and C-8', hydroxymethyl group at C-10a', methyl groups at C-6 and C-6' and oxo groups at C-9 and C-9' respectively. A dimeric tetrahydroxanthone derivative isolated from Phomopsis longicolla, it exhibits antibacterial and cytotoxic activities.


DICERANDROL C

A biaryl that is 5,5',7,7',9,9',10a,10a'-octahydro-6H,6'H-2,2'-bixanthene substituted by acetyloxy groups at C-5 and C-5', (acetyloxy)methyl group at C-10a and C-10a', hydroxy groups at C-1, C-1', C-8 and C-8', methyl groups at C-6 and C-6' and oxo groups at C-9 and C-9' respectively. A dimeric tetrahydroxanthone derivative isolated from Phomopsis longicolla, it exhibits antibacterial and cytotoxic activities.


dichotomoside D

A neolignan that is dibutyl 3,3'-biphenyl-3,3'-diyldipropanoate substituted by a beta-D-glucopyranosyloxy group at position 6, hydroxy group at position 6' and methoxy groups at positions 5 and 5' respectively. Isolated from the roots of Stellaria dichotoma var lanceolata, it exhibits anti-allergic activity.


DICRANIN

A trienoic fatty acid, that is octadecanoic acid containing double bonds at positions 9, 12 and 15 and a triple bond at position 6. Isolated from Dicranum scoparium, it exhibits antibacterial activity and inhibitory activity against arachidonate 15-lipoxygenase.


DIECKOL

A phlorotannin isolated from a brown alga Ecklonia cava which exhibits antioxidant, hepatoprotective and anticoagulant activities.


A  biflavonoid that is  2,3-dihydroamentoflavone in which the hydroxy groups at positions 4' and 4'' have been replac ed by methoxy groups. It has been isolated from the leaves of Podocarpus macrophyllus var macrophyllus.


A capsaicinoid that is a dimer obtained by replacement of the hydrogen at position 5' of capsaicin with 6'',7''-dihydrocapsaicin. It is isolated from the dried fruits of Capsicum annuum and exhibits antioxidant activity.


A member of the class of rotenones that is 4',5'-dihydrotephrosin substituted by hydroxy groups at positions 11 and 5' and a methoxy group at position 4'. It is isolated from the   stems of Tephrosia toxicaria and exhibits antineoplastic activity.


A polyketide that consists of cyclohex-2-en-1-one substituted by hydroxy groups at positions 3 and 5 and a hexadec-3-enoyl group at position 2 (the 3E stereoisomer). It is isolated form the leaves of Virola sebifera an exhibits cytotoxic activity against human tumour cells.


A dihydroagarofuran sesquiterpenoid that consists of dihydroagarofuran substituted by a acetyloxy group at position 1, benzyloxy groups at positions 6, 9 and 15 and a hydroxy group at position 2. It is isolated from the roots of Microtropis fokienensis and exhibits antitubercular activity.


A dihydroagarofuran sesquiterpenoid that consists of dihydroagarofuran substituted by a acetyloxy group at position 2, benzyloxy groups at positions 6, 9 and 15 and a hydroxy group at position 1. It is isolated from the roots of Microtropis fokienensis and exhibits antitubercular activity


A cadinane sesquiterpenoid that is 1,2,3,4,6,7,8,8a-octahydronaphthalen-2-ol substituted by hydroxymethyl group at position 5, isopropyl group at position 8 and a methyl group at position 2 (the 2S,8R,8aR stereoisomer). Isolated from the culture broth of Tyromyces chioneus, it exhibits anti-HIV-1 activity.


A member of the class of chalcones that is trans-chalcone substituted by hydroxy groups at positions 2' and 4', 2-hydroxy benzyl group at position 3' and methoxy group at position 6'. It is isolated from the aerial parts of   Ellipeiopsis cherrevensis  and exhibits antibacterial, antimalarial and antineoplastic activity.


A ent-kaurane diterpenoid that is ent-kaurane-19-oic acid substituted by hydroxy groups at positions 16 and 17 (the 16beta stereoisomer). It is isolated from Helianthus sp. and Annona squamosa and exhibits anti-HIV activity.


A benzyl alcohol with hydroxy substituents at positions 2 and 5 and a methanesulfinyl group at position 3. It is a fungal secondary metabolite from Ampelomyces sp. SC0307 and has antibacterial activity against Escherichia coli, Pseudomonas aeruginosa and Proteus vulgaris.


A member of the class of 7-hydroxyisoflavones that is 7,4'-dihydroxyisoflavone substituted by a methoxy group at position 3'. It is isolated from the heart woods of Maackia amurensis subsp buergeri and Dalbergia louveli and exhibits antiplasmodial ativity.


A diterpenoid that is podocarpa-5,8,11,13-tetraen-7-one substituted by hydroxy groups at positions 3 and 12 and a methyl group at position 13 (the 3beta stereoisomer). Isolated from Securinega suffruticosa, it exhibits antineoplastic activity.


A diterpenoid that is podocarpa-6,8,11,13-tetraene substituted by a methyl group at position 13 and hydroxy groups at position 3 and 12. Isolated from Securinega suffruticosa, it exhibits cytotoxicity towards human cancer cells.


A pentacyclic triterpenoid that is urs-12-ene substituted by a carboxy group at position 28, alpha-configured hydroxy groups at positions 2 and 19 and an oxo group at position 3. Isolated from the whole plants of Geum japonicum, it exhibits activity against HIV-1 protease.


3,4-dihydroxy-5-prenylcinnamic acid

A hydroxycinnamic acid that is trans-caffeic acid substituted by a prenyl group at position 5. Isolated from Brazilian propolis, it exhibits antioxidant activity.


An organic heterotricyclic compound that is 5,6-methylenedioxybenzofuran substituted by a 2,4-dihydroxy-5-prenylphenyl moiety at position 2. Isolated from the roots of Sophora flavescens, it exhibits cytotoxic activity against the KB epidermoid carcinoma cell line.


4,4'-dihydroxybenzyl sulfone

A sulfone compound having two S-4-hydroxybenzyl substituents. Isolated from the tuber of Gastrodia elata, it exhibits inhibitory effect on platelet aggregation.


A dihydroxyflavanone with hydroxy substituents at positions 7 and 8. Isolated from the seeds of Alpinia katsumadai, it acts as a an inhibitor for Jun-Fos-DNA complex formation and exhibits antineoplastic activity.


A pentacyclic triterpenoid that is friedelane substituted by hydroxy groups at positions 28 and 29 and an oxo group at position 3. Isolated from the stems of Maytenus diversifolia, it exhibits potent cytotoxicity against the A-549 lung carcinoma cells.


A labdane diterpenoid that is labdane with a double bond at position 13 and is substituted by hydroxy groups at positions 8alpha and 19 and a carboxy group at position 15. Isolated from the aerial parts of Crassocephalum mannii, it exhibits inhibitory activity towards cyclooxygenases (COX-1 and COX-2).


A glycosyloxyflavone that is luteolin substituted by a 6-O-malonyl-beta-D-glucopyranosyl moiety at position 7 via glycosidic linkage.


A phlorotannin that is eckol in which the hydroxy group at position 7 is replaced by a 2,4,6-trihydroxyphenoxy group. Isolated from the marine brown alga, Ecklonia cava, it exhibits antioxidant activity.


A beta-D-glucoside having hydroxytyrosol as the anomeric substituent. Isolated from Zantedeschia aethiopica and Picrorhiza scrophulariiflora, it exhibits antioxidant activity.


DIINSININOL

A biflavonoid isolated from the rhizome of Sarcophyte piriei and exhibits anti-inflammatory activity.


DILOPHOLIDE

A diterpenoid isolated from the brown alga Dilophus ligulatus and has been shown to exhibit cytotoxic activity.


A dimethoxyflavanone that is 5,7-dimethoxyflavanone substituted by a formyl group at position 8. Isolated from the stem bark of Pongamia pinnata, it acts as a an inducer of quinone reductase, a phase II enzyme that protects cells against reactive, toxic and potentially carcinogenic species.


An extended flavonoid that is 3',4'-methylenedioxyflavanone substituted by methoxy groups at positions 5 and 7 and a 2-hydroxy-3-methyl-3-butenyl moiety at position 8 (the 2S stereoisomer). Isolated from the stem barks of Pongamia pinnata, it acts as a an inducer of quinone reductase, a phase II enzyme that protects cells against reactive, toxic and potentially carcinogenic species.


dinochrome A

A carotenoid that is 6,7'-didehydro-5,5',6,8-tetrahydro-5,8-epoxy-beta,beta-carotene substituted by acetyloxy group at position 3' and hydroxy groups at positions 3 and 5' respectively. Isolated from the fresh water red tide Peridinium bipes, it has been found to inhibit proliferation of human malignant tumor cells, such as GOTO, OST and HeLa cells.


3,21-dioxoolean-18-en-28-oic acid

A pentacyclic triterpenoid that is olean-18-ene substituted by a carboxy group at position 28 and oxo groups at positions 3 and 21 respectively. Isolated from the leaves of Acacia aulacocarpa, it exhibits inhibitory activity against Tie2 kinase (EC 2.7.10.1) as well as modest activity against a variety of cultured mammalian cells.


diperamycin

A 19-membered cyclodepsipeptide  that is a hexadepsipeptide isolated from the fermentation broth of Streptomyces griseoaurantiacus MK393-AF2 and exhibits potent inhibitory activity against various Gram-positive bacteria including Enterococcus seriolicida and methicillin-resistant Staphylococcus aureus.


An organic heterobicyclic compound that is 7,7a-dihydrocyclopenta[b]pyran-6(2H)-one substituted by a hydroxy group at position 5 and a prop-2-en-1-ylidene group at position 7 (the E isomer). Isolated from the sponge Ulosa and ascidian Diplosoma virens, it exhibits antimicrobial activity and toxicity against HCT116 cells (human colorectal cancer cells) by triggering apoptotic cell death.


An organic heterobicyclic compound that is 7,7a-dihydrocyclopenta[b]pyran-6(2H)-one substituted by a hydroxy group at position 5 and a prop-2-en-1-ylidene group at position 7 (the Z isomer). Isolated from the sponge Ulosa and ascidian Diplosoma virens, it exhibits antimicrobial activity and toxicity against HCT116 cells (human colorectal cancer cells) by triggering apoptotic cell death.


DIUVARETIN

A member of the class of dihydrochalcones that is dihydrochalcone substituted by 2-hydroxybenzyl groups at positions 3 and 5, hydroxy groups at positions 2 and 4 and a methoxy group at position 6. Isolated from the roots of Uvaria acuminata and Uvaria chamae, it exhibits cytotoxicity towards human promyelocytic leukemia HL-60 cells.


DORSILURIN F

A 7-hydroxyflavonol substituted by additional hydroxy groups at positions 5 and 3' and prenyl groups at positions 6, 8 and 4'. Isolated from the roots of Dorstenia psilurus, it exhibits alpha-glucosidase inhibitory activity.


DORSILURIN G

A 7-hydroxyflavonol substituted by additional hydroxy groups at positions 5 and 3', prenyl groups at positions 6 and 8 and a (2S)-2-hydroxy-3-methylbut-3-en-1-yl group at position  4'. Isolated from the roots of Dorstenia psilurus, it exhibits alpha-glucosidase inhibitory activity.


DORSILURIN H

An extended flavonoid that is 7-hydroxyflavonol with an additional hydroxy group at position 3', a 2,2-dimethyldihydropyrano ring fused to ring A across positions 5 and 6, a prenyl group at position 8 and a (2S)-2-hydroxy-3-methylbut-3-en-1-yl group at position 4'. Isolated from the roots of Dorstenia psilurus, it exhibits alpha-glucosidase inhibitory activity.


DORSILURIN I

An extended flavonoid that is flavonol with additional hydroxy groups at position 5 and 3', a 2,2-dimethyldihydropyrano ring fused to ring A across positions 7 and 8, a prenyl group at position 6 and a (2S)-2-hydroxy-3-methylbut-3-en-1-yl group at position 4'. Isolated from the roots of Dorstenia psilurus, it exhibits alpha-glucosidase inhibitory activity.


DORSILURIN J

An extended flavonoid that is 7-hydroxyflavonol with an additional hydroxy group at position 3', a 2,2-dimethyldihydropyrano ring fused to ring A across positions 5 and 6, and  prenyl groups at positions 8 and 4'. Isolated from the roots of Dorstenia psilurus, it exhibits alpha-glucosidase inhibitory activity.


DORSILURIN K

An extended flavonoid that is flavonol with an additional hydroxy group at position 3', two 2,2-dimethyldihydropyrano rings fused to ring A across positions 5, 6 and 7, 8 respectively and a prenyl group at position 4'. Isolated from the roots of Dorstenia psilurus, it exhibits alpha-glucosidase inhibitory activity.


DRUMMONDIN D

A chromenol that is a derivative of filicinic acid and is isolated from the stems and leaves of Hypericum drummondii. It has been found to exhibit antibacterial activity against Gram-positive bacteria Staphylococcus aureus and Bacillus subtilis and the acid fast bacterium Mycobacterium smegmatis.


DRUMMONDIN E

A member of the class of resorcinols that is a derivative of filicinic acid. Isolated from the stems and leaves of Hypericum drummondii, it exhibits antibacterial activity against Gram-positive bacteria Staphylococcus aureus and Bacillus subtilis and the acid fast bacterium Mycobacterium smegmatis.


DRUMMONDIN F

A benzenetriol that is a derivative of filicinic acid. Isolated from the stems and leaves of Hypericum drummondii, it exhibits antibacterial activity against Gram-positive bacteria Staphylococcus aureus and Bacillus subtilis and the acid fast bacterium Mycobacterium smegmatis.


drymaritin

An indole alkaloid that is canthin-6-one substituted by a methoxy group at position 4. Isolated from the whole plants of Drymaria diandra, it exhibits anti-HIV activity.


durhamycin A

An aureolic acid that consists of tetrasaccharide and disaccharide moieties attached to the tricyclic aglycone. Isolated from Actinoplanes durhamensis, it exhibits anti-HIV activity.


durhamycin B

An aureolic acid that consists of trisaccharide and disaccharide moieties attached to the tricyclic aglycone. Isolated from Actinoplanes durhamensis, it exhibits anti-HIV activity.


DYSIDINE

A sesquiterpenoid isolated from the sponge Dysidea sp. that is 5-amino-2-hydroxy-3-methyl-1,4-benzoquinone in which one of the hydrogens of the methyl group is replaced by a 1,2,4a,5-tetramethyl-1,2,3,4,4a,7,8,8a-octahydronaphthalen-2-yl group and one of the hydrogens attached to the nitrogen is replaced by a 2-sulfoethyl group. Dysidine selectively inhibits human synovial phospholipase A2 (EC 3.1.1.4) with an IC50 = 2.0 muM.


dysoxyhainanin A

A pentacyclic triterpenoid with a rearranged oleanane skeleton isolated from the whole plants of Dysoxylum hainanense. It exhibits antibacterial activity against Gram-positive bacteria.


dzununcanone

A tetracyclic triterpenoid that is 3,24-dinor-2,4-seco-friedelan-1(10),5,7-triene substituted by methoxycarbonyl groups at positions 2 and 29 and an oxo group at position 4. Isolated from the root bark of Hippocratea excelsa, it exhibits anti-protozoal activity against Giardia intestinalis.


ECKOL

A phlorotannin that is oxanthrene-1,3,6,8-tetrol substituted by a 3,5-dihydroxyphenoxy moiety at position 4. Isolated from the marine brown alga, Ecklonia cava, it exhibits antioxidant activity.


DIOXINODEHYDROECKOL

A phlorotannin that is [1,4]benzodioxino[2,3-a]oxanthrene substituted by hydroxy groups at positions 1, 3, 6, 9 and 11. Isolated from the brown alga Ecklonia stolonifera, it exhibits radical scavenging activity.


EHRETIANONE

An organic heterotetracyclic compound that is 9,9a-dihydro-9,4a-prop[1]enoxanthene-1,4-dione substituted by a hydroxy group at position 7, a methyl group at position 12 and a prenyl group at position 9a. Isolated from the root barks of Ehretia buxifolia, it exhibits antisnake venom activity.


A polyene antibiotic isolated from the fermentation broth of Streptomyces sp.E-1625 that exhibits inhibitory activity towards the recombinant human interleukin-1beta converting enzyme (ICE). It also shows weak antibacterial activity against strains like Enterococcus faecium, Staphylococcus aureus and Bacillus subtilis.


An epoxide isolated from Streptomyces sp. E-1511. An inhibitor of interleukin-1beta converting enzyme (ICE), it acts as an anti-inflammatory agent and an antibiotic.


An epoxide isolated from Streptomyces sp. E-1625. An inhibitor of interleukin-1beta converting enzyme (ICE), it acts as an anti-inflammatory agent and antibiotic.


ELAEODENDROSIDE B

A steroid lactone isolated from Elaeodendron tangenala and Elaeodendron glaucum and exhibits antiproliferative activity against A2780 human ovarian cancer cells.


ELAEODENDROSIDE T

A steroid lactone isolated from Elaeodendron tangenala and exhibits antiproliferative activity against A2780 human ovarian cancer cells.


ELAEODENDROSIDE U

A cardenolide glycoside that is carda-4,20(22)-dienolide substituted by hydroxy groups at positions 2 and 14, an oxo group at position 12 and a (4-deoxy-3-O-methyl-alpha-L-erythro-pentopyranosyl)oxy moiety at position 3 (the 2alpha,3beta stereoisomer). Isolated from from wood of Elaeodendron tangenala, it exhibits antiproliferative activity against A2780 human ovarian cancer cells.


ELAEODENDROSIDE V

A cardenolide glycoside that is sarmentologenin glycosylated at position 3 by a beta-allosyl-(1->4)-beta-6-deoxyallosyl moiety. Isolated from Elaeodendron alluaudianum, it exhibits antiproliferative activity against human ovarian cancer and human histiocytic lymphoma cell lines.


ELAEODENDROSIDE W

A cardenolide glycoside that is 3,5,11,14-tetrahydroxy-19-oxocard-20(22)-enolide glycosylated at position 3 by a beta-allosyl-(1->4)-beta-6-deoxyallosyl group. Isolated from Elaeodendron alluaudianum, it exhibits antiproliferative activity against human ovarian cancer and human histiocytic lymphoma cell lines.


A guaiane sesquiterpenoid isolated from Elephantopus mollis and has been shown to exhibit cytotoxic activity.


A  germacranolide that is the 2beta-methoxy-2-deethoxy derivative of phantomolin. Isolated from Elephantopus mollis, it exhibits antineoplastic activity.


A  germacranolide isolated from Elephantopus mollis and has been shown to exhibit antineoplastic activity.


elongatol A

A sesquiterpenoid that is 1,2,3a,4,5,7,8,9,9a,9b-decahydronaphtho[2,1-b]furan substituted by methyl groups at positions 1, 9 and 9a and hydroxy groups at positions 2 and 7. Isolated from methylene chloride solubles of the Formosan soft coral Nephthea elongata, it exhibits cytotoxicity against selected cancer cells.


elongatol E

A sesquiterpenoid that is 1,2,3a,4,5,5a,8,9,9a,9b-decahydronaphtho[2,1-b]furan substituted by methyl groups at positions 1, 9 and 9a and hydroxy groups at positions 2 and 5a. Isolated from methylene chloride solubles of the Formosan soft coral Nephthea elongata, it exhibits cytotoxicity against selected cancer cells.


emarginatine B

A sesquiterpene alkaloid that is a macrolide incorporating a substituted dihydroagarofuran and a pyrindine ring. Isolated from Maytenus emarginata, it exhibits cytotoxicity against human KB cells.


emarginatine F

A sesquiterpene alkaloid that is a macrolide incorporating a substituted dihydroagarofuran and a pyrindine ring. Isolated from Maytenus emarginata, it exhibits strong cytotoxicity against human epidermoid carcinoma of the nasopharynx (KB), ileocecal adenocarcinoma (HCT-8), melanoma (RPMI-7951) and medulloblastoma (TE-671) tumor cells, and against murine leukemia (P-388).


A member of the class of monohydroxy-1,4-benzoquinones that is embelin in which the hydroxy group at position 5 is replaced by a methoxy group. Isolated from Lysimachia punctata and Embelia ribes, it exhibits antileishmanial activity as well as inhibitory activity towards hepatitis C protease.


5-O-ethyl embelin

A member of the class of monohydroxy-1,4-benzoquinones that is embelin in which the hydroxy group at position 5 is replaced by a ethoxy group. Isolated from Lysimachia punctata and Embelia ribes, it exhibits antineoplastic activity.


A sesquiterpenoid that is bisabola-2,10-diene substituted by a peroxy group between positions 2 and 10 (the 1S,4R,6R stereoisomer). Isolated from Artemisia stolonifera and Eupatorium rufescens, it exhibits antineoplastic and antiplasmodial activity.


A sesquiterpenoid that is bisabola-2,10-diene substituted by a peroxy group between positions 2 and 10 (the 1R,4S,6R stereoisomer). Isolated from Artemisia stolonifera and Eupatorium rufescens, it exhibits antineoplastic and antiplasmodial activity.


20-epi-bryonolic acid

A pentacyclic triterpenoid of D:C-friedooleanane-type triterpenoids isolated from the stems of Lagenaria siceraria and roots of Coriaria intermedia and has been found to exhibit antineoplastic activity.


epi-cochlioquinone A

An organic heterotetracyclic that is 1,2,3,4a,5,6,6a,12,12a,12b-decahydropyrano[3,2-a]xanthene-8,11-dione  substituted by a 2-hydroxypropan-2-yl group at position 3, hydroxy group at position 12, methyl groups at positions 6a and 12b and a 3-(acetyloxy)-4-methylhexan-2-yl moiety at position 9. Isolated from the fermentation broth of Stachybotrys bisbyi SANK 17777, it acts as an inhibitor of acyl-CoA:cholesterol acyltransferase.


A gallate ester resulting from the formal condensation of gallic acid with 5-hydroxy group of (-)-epicatechin. Isolated from Orostachys japonica, it acts as an inhibitor of the enzyme mu-calpain (EC 3.4.22.52).


epichlicin

A homodetic cyclic peptide containing L-Pro, D-Tyr, L-Ser, L-Asn and L-Gln as the amino acid residues. Isolated from an endophytic fungus, Epichloe typhina, it exhibits inhibitory activity toward the spore germination of Cladosporium phlei, a pathogenic fungus of the timothy plant.


An enone that is a tetraprenyl benzophenone derivative isolated from Rheedia gardneriana and Garcinia brasiliensis. It exhibits anti-allergic, antibacterial, trypanocidal and vasodilating activities.


A cholestanoid that is cholest-6-ene substituted by a beta-hydroxy group at position 3 and a peroxy group between positions 5 and 8 (the 5alpha,8alpha stereoisomer). Isolated from the sea urchin Diadema setosum, it exhibits cytotoxicity against variuos cancer cell lines.


A sterol 3-beta-D-glucoside that is ergosta-6,9,22-triene-3beta-ol with a peroxy group between positions 5 and 8 and is substituted by a beta-D-glucopyranosyl moiety at position 3 via a glycosidic linkage. Isolated from the fruit bodies of Chlorophyllum molybdites, it exhibits cytotoxicity against Kato III cells.


A 3beta-sterol that consists of 24-methylcholest-6-en-3beta-ol with a peroxy group between positions 5 and 8 and a methylene group between positions 22 and 23. An antineoplastic agent isolated from  Sinularia sp.


A proanthocyanidin that is a doubly linked dimer composed of (-)-epicatechin and (-)-epigallocatechin as its flavanol units. Isolated from the wood of Xanthoceras sorbifolium, it exhibits inhibitory activity towards HIV-1 protease.


A sterol 3-beta-D-glucoside that is 16,23-epoxycholest-24-ene-3,22-diol substituted by a 6-deoxy-alpha-L-mannopyranosyl-(1->2)-beta-D-glucopyranosyl-(1->2)-beta-D-glucopyranosyl moiety at position 3 via a glycosidic linkage (the 3beta,5beta,16beta,22R,23S stereoisomer). Isolated from bulbs of Ornithogalum saundersiae, it exhibits inhibitory activity on proliferation of human peripheral blood lymphocytes.


A sesquiterpene lactone that is the 5alpha-epoxy derivative of alantolactone. Isolated from the root extracts of Inula helenium, it exhibits antimycobacterial activity.


An epoxide substituted at position 2 by a hydroxymethyl group and at position 3 by a hepta-1,3,5-triyn-1-yl group (the 2S,3S)-diastereomer. It is isolated from  Trametes pubescens and exhibits antifungal properties.


ERGOSTEROL PEROXIDE

An ergostanoid that is ergosta-6,22-dien-3-ol with a peroxy group between positions 5 and 8 (the 3beta,5alpha,8alpha,22E stereoisomer). Isolated from Ganoderma lucidum and Cordyceps sinensis, it exhibits antimycobacterial, trypanocidal and antineoplastic activities.


A beta-D-glucosiduronic acid that is the 7-O-glucuronide of (2S)-eriodictyol. Isolated from the flowers of Chrysanthemum indicum, it exhibits  inhibitory activity for rat lens aldose reductase.


A beta-D-glucosiduronic acid that is the 7-O-glucuronide of (2R)-eriodictyol. Isolated from the flowers of Chrysanthemum indicum, it exhibits inhibitory activity for rat lens aldose reductase.


A a disaccharide derivative consisting of eriodictyol beta-D-glucoside having a beta-D-glucosyl residue attached at the 2-position. Isolated from the aerial parts of Globularia alypum, it exhibits antioxidant activity.


ERYBRAEDIN A

A member of the class of pterocarpans that is 3,9-dihydroxypterocarpan substituted with prenyl groups at positions 4 and 10 (the 6aR,11aR stereoisomer). Isolated from Erythrina stricta and Erythrina zeyheri, it exhibits antibacterial, antimycobacterial, antiplasmodial and cytotoxic activities.


erylatissin A

A member of the class of 7-hydroxyisoflavones in which isoflavone is substituted by hydroxy groups at the 7 and 3' positions, a methoxy group at the 4' position and a prenyl group at position 5'. Isolated from the stem wood of Erythrina latissima, it exhibits antimicrobial and radical scavenging activities.


erylatissin B

A member of the class of 7-hydroxyisoflavones that is isoflavone with hydroxy groups at C-7 and C-3' positions and a 2,2-dimethylpyran ring fused to ring B across positions C-4' and C-5'. Isolated from the stem wood of Erythrina latissima, it exhibits antimicrobial and radical scavenging activities.


erylatissin C

A dihydroxyflavanone that is (2S)-flavanone substituted by hydroxy groups at positions 7 and 3', a methoxy group at position 4' and a prenyl group at position 5'. Isolated from Erythrina latissima, it exhibits antimicrobial and radical scavenging activities.


esculeoside A

A steroid saponin that is spirosolane-3,23,27-triol in which the hydroxy group at position 23 is acetylated and the hydroxy groups at positions 3 and 27 are glycosylated by lycotetraosyl and a beta-D-glucopyranosyl moieties respectively. Isolated from the fruits of Lycopersicon esculentum, it exhibits cytotoxic activity.


espicufolin

A  naphthochromene that is 4H-naphtho[2,3-h]chromene which is substituted at position 2 by a (2R)-butan-2-yl group, at position 5 by a hydroxymethyl group, at position 11 by a hydroxy group, and at positions 4, 7, and 12 by oxogroups. An antibiotic isolated from Streptomyces sp. cu39, it exerts a potent protecting effect on neuronal cells through suppressing L-glutamate toxicity.


etnangien

A macrolide antibiotic isolated from the culture broth of the myxobacterium Sorangium cellulosum and has been found to be active against Gram-positive bacteria.


eucalyptal A

An organic heterotetracyclic compound whose skeleton is composed of 3,5-diformyl-isopentyl substituted phloroglucinol fused with a cadinane ring system. Isolated from Eucalyptus globulus, it exhibits antineoplastic activity.


Eunicea sesquiterpenoid 2

A eudesmane sesquiterpenoid in which the eudesmane skeleton is substituted with an alpha-hydroxy group at C-1 (eudesmane numbering) and a methylidene group at C-4, and includes a lactone ring formed between C-12 and a beta-hydroxy group at C-6. It is isolated from Eunicea sp. and exhibits significant inhibitory effect upon the growth of the malarial parasite Plasmodium falciparum


Eunicea sesquiterpenoid 7

A sesquiterpenoid that is a carboxylic ester obtained by the formal condensation of the 6-hydroxy group of cyclodec-4-en-1-one which is also substituted by an acetyl, a methyl and a methylidene group at positions 7, 4 and 10 respectively with the carboxy group of pent-2-enoic acid substituted with a hydroxy and a methyl group at position 4. It is an antiplasmodial drug isolated from a Caribbean gorgonian coral Eunicea sp.


A dihydroagarofuran sesquiterpenoid that is beta-dihydroagarofuran substituted by methylbutanoyloxy groups at positions 1 and 6, a hydroxy group at position 4, a benzoyloxy group at position 8, a furancarbonyloxy group at positon 9 and an acetyloxy group at position 13. Isolated from Euonymus nanoides, it exhibits cytotoxic activity.


EUPAHELIANGOLIDE A

A sesquiterpene lactone of the heliangolide group isolated from Eupatorium kiirunense and exhibits cytotoxicity against human oral epidermoid (KB), cervical epitheloid (Hela) and liver (hepa59T/VGH) carcinoma cells.


A sesquiterpene lactone that is a 3alpha-hydroxy epimer of heliangin. Isolated from Eupatorium kiirunense, it exhibits cytotoxicity against human oral epidermoid (KB), cervical epitheloid (Hela) and liver (hepa59T/VGH) carcinoma cells.


Euphorbia diterpenoid 1

A tetracyclic diterpenoid isolated from the whole plant of Euphorbia decipiens and exhibits inhibitory activity against prolyl endopeptidase (EC 3.4.21.26).


Euphorbia diterpenoid 2

A tetracyclic diterpenoid isolated from the whole plant of Euphorbia decipiens and exhibits inhibitory activity against urease.


euphornin L

A macrocyclic diterpenoid isolated from Euphorbia helioscopia and has been shown to exhibit cytotoxicity against HL-60 cell lines.


EURYCOMANONE

A  quassinoid isolated from Eurycoma longifolia and has been shown to exhibit antineoplastic and antimalarial activties.


evolvoid A

A cinnamate ester obtained by the formal condensation of the carboxy group of trans-caffeic acid with 2-methylbutane-1,2,3-triol and in which the hydroxy group at position 4 is replaced by a 2,3,4-trihydroxy-2-methylbutyl]oxy group. Isolated from the whole plants of Evolvulus alsinoides, it exhibits characteristics of an Ayurvedic crude drug.


EXIGUAFLAVONE A

A tetrahydroxyflavanone that is (2S)-flavanone substituted by hydroxy groups at positions 5, 7, 2' and 6' and a lavandulyl group at position 8. Isolated from Sophora exigua and Artemisia indica, it exhibits antimalarial activity.


EXIGUAFLAVONE B

A trihydroxyflavanone that is (2S)-flavanone substituted by hydroxy groups at positions 5, 2' and 6', a lavandulyl group at position 8 and a methoxy group at position 7. Isolated from Sophora exigua and Artemisia indica, it exhibits antimalarial activity.


A member of the class xanthones which consists of a dihydroxanthone skeleton substituted by a acetyloxy group at position 4, a hydroxy group at position 8, a methyl group at position 6 and a methoxycarbonyl group at position 4a (the 4R,4aS stereoisomer). It is isolated from Penicillium and exhibits potent antitumour activity against both human and murine tumour cell lines.


A member of the class xanthones which consists of a dihydroxanthone skeleton substituted by hydroxy groups at positions 4 and 8, a hydroxymethyl group at position 6 and a methoxycarbonyl group at position 4a (the 4R,4aS stereoisomer). It is isolated from Penicillium and exhibits potent antitumour activity against both human and murine tumour cell lines.


fattiviracin A1

A carbohydrate-containing antibiotic isolated from the fermentation broth of Streptomyces microflavus strain No. 2445 and exhibits antiviral activity against herpes simplex virus type 1 (HSV-1), varicella-zoster virus (VZV), influenza A virus and human immunodeficiency virus type 1 (HIV-1).


A delta-lactone that is 3,5,7,7a-tetrahydro-2H-furo[3,4-b]pyran-2-one substituted by a hydroxy group at position 3 and propenyl groups at positions 5 and 7. Isolated from the fermantation broth of Myceliophthora lutea TF-0409, it exhibits broad spectrum activity against cultured tumor cell lines, including adriamycin-resistant HL-60 cells.


flavaspidic acid AB

A polyphenol that is a phloroglucinol derivative isolated from the rhizomes of Dryopteris crassirhizoma and has been shown to exhibit radical scavenging and antibacterial activity.


FLAVOKAWAIN B

A member of the class of chalcones that consists of trans-chalcone substituted by hydroxy group at positions 2' and methoxy groups at positions 4' and 6'. Isolated from Piper methysticum and Piper rusbyi, it exhibits antileishmanial, anti-inflammatory and antineoplastic activities.


fleephilone

A organic heterotetracyclic compound isolated from the fermentation broth of Trichoderma harzianum and exhibits anti-HIV activity.


floribundasaponin A

A spirostanyl glycoside that is pennogenin attached to a beta-D-glucopyranosyl moiety at position 3 via a glycosidic linkage. Isolated from the stem bark of Dracaena mannii, it exhibits anti-inflammatory  activity.


FOMITOPINIC ACID A

A tetracyclic triterpenoid that is lanost-8-ene substituted by hydroxy groups at positions 24 and 25 , a carboxylic acid at position 21 and an oxo grouo at position 3 (the 24S stereoisomer). Isolated from the fruit bodies of Fomitopsis pinicola, it exhibits antiinflammatory activity against cylooxygenase-1 (COX-1) and cylooxygenase-2 (COX-2).


FOMITOSIDE E

A triterpene glycoside that consists of lanost-8,23-dien-21-oic acid substituted at by a alpha-acetyloxy group at position 3, a hydroxy group at position 25 and a beta-D-xylopyranosyl moiety at position 21 via a glycosidic linkage. Isolated from the fruit body of  Fomitopsis pinicola, it exhibits inhibitory activity against COX-1 and COX-2.


FOMITOSIDE F

A triterpene glycoside that consists of lanost-8,24-dien-21-oic acid substituted at by a alpha-acetyloxy group at position 3 and a beta-D-xylopyranosyl moiety at position 21 via a glycosidic linkage. Isolated from the fruit body of Fomitopsis pinicola, it exhibits inhibitory activity against COX-1 and COX-2.


A tetracyclic diterpenoid that is hexadecahydropyrene substituted by isocyano group at position 8, methyl groups at positions 1, 4, 7 and 8 and a formamido group at position 1. Isolated from the tropical marine sponge Cymbastela hooperi, it exhibits antiplasmodial activity.


formobactin

A  cyclic hydroxamic acid derivative and antibiotic isolated from Nocardia sp. strain ND20. It exerts an inhibitory effect on lipid peroxidation and also has a potent protecting effect on neuronal cells.


forskoditerpenoside C

A diterpene glycoside that is labd-14-en-11-one substituted by beta-acetoxy group at position 6, an epoxy group between positions 8 and 13, a beta-hydroxy group at position 7 and a beta-D-glucopyranosyloxy group at position 1 (the 1alpha stereoisomer). Isolated from the whole plant of Coleus forskohlii, it shows relaxative effects on isolated guinea pig tracheal spirals in vitro.


forskoditerpenoside D

A diterpene glycoside that is labd-14-en-11-one substituted by beta-acetoxy groups at positions 6 and 7, an epoxy group between positions 8 and 13 and a beta-D-glucopyranosyloxy group at position 1 (the 1alpha stereoisomer). Isolated from the whole plant of Coleus forskohlii, it shows relaxative effects on isolated guinea pig tracheal spirals in vitro.


forskoditerpenoside E

A diterpene glycoside that is labd-14-en-11-one substituted by beta-acetoxy group at position 6, an epoxy group between positions 8 and 13 and a beta-D-glucopyranosyloxy group at position 1 (the 1alpha stereoisomer). Isolated from the whole plant of Coleus forskohlii, it shows relaxative effects on isolated guinea pig tracheal spirals in vitro.


An azaarene that is benzo[c]cinnoline with methoxy substituents at positions 1 and 10. It is isolated from Streptomyces sp. strain 4849 with pharmaceutical potential as an inhibitor of interleukin-4 receptor (IL-4).


A 14-membered macrolide isolated from the Serratia liquefaciens and exhibits anti-hyperlipidemic activity.


A polyphenol which is the benzoate ester obtained by formal condensation of the hydroxy ester derivative produced by the successive intermolecular condensation of 3 molecules of 2,4-dihydroxy-6-(2-hydroxypropyl)benzoic acid with the carboxy OH of o-orsellinic acid. It is isolated from the Fungus strain no.17415 and exhibits activity against the infectivity of influenza A virus.


A triterpene glycoside with strong antifungal activity against Aspergillus fumigatus and Candida albicans. It is isolated from natural Chaetomium sp.no.217.


A cyclic hemiketal isolated from the fermentation broth of Pseudomonas sp.no.2663. It displays potent cytotoxic activity against human tumour cells.


A spiro-epoxide with potent anticancer activity that lowers the mRNA levels of oncogenes and tumour supressor genes. It is isolated from Pseudomonas sp. no.2663.


A spiro-epoxide with potent cytotoxic activity against human tumour cells. It is isolated from Pseudomonas sp. no.2663.


FUCODIPHLOROETHOL G

A phlorotannin that consists of biphenyl-2,2',4,4',6-pentol substituted by a 2,4-dihydroxy-6-(2,4,6-trihydroxyphenoxy)phenoxy substituent at position 6'. Isolated from the marine brown alga Ecklonia cava, it exhibits anti-allergic, antioxidant and hypoglycemic activities.


fukanemarin A

A hydroxycoumarin that is 4,7-dihydroxycoumarin substituted by a 1,2,6,10-tetramethyl-8-oxoundeca-2(E),5(E),9-trienyl moiety at position 3. Isolated from the roots of Ferula fukanensis, it exhibits inhibitory effects on the production of nitric oxide (NO).


fukanemarin B

A hydroxycoumarin that is 4-hydroxycoumarin substituted by a methoxy group ar position 7 and a 1,2,6-trimethyl-7-(4-methyl-2-furyl)-hepta-2(E),5(E)-dienyl moiety at position 3. Isolated from the roots of Ferula fukanensis, it inhibits production of nitric oxide (NO).


FUKANEFUROMARIN A

A furanocoumarin that is 2,3-dihydrofuro[3,2-c]coumarin substituted by a hydroxy group at position 7, methyl groups at positions 2 and 3 (relatively cis configuration) and a 4,8-dimethyl-4(E),7-nonadien-6-onyl moiety at position 2. Isolated from the roots of Ferula fukanensis, it inhibits production of nitric oxide (NO).


FUKANEFUROMARIN B

A furanocoumarin that is 2,3-dihydrofuro[3,2-c]coumarin substituted by a hydroxy group at position 7, methyl groups at positions 2 and 3 (relatively trans configuration) and a 4,8-dimethyl-4(E),7-nonadien-6-onyl moiety at position 2. Isolated from the roots of Ferula fukanensis, it inhibits production of nitric oxide (NO).


FUKANEFUROMARIN C

A furanocoumarin that is 2,3-dihydrofuro[3,2-c]coumarin substituted by a hydroxy group at position 7, methyl groups at positions 2 and 3 (relatively cis configuration) and a 4,8-dimethyl-4(Z),7-nonadien-6-onyl moiety at position 2. Isolated from the roots of Ferula fukanensis, it inhibits production of nitric oxide (NO).


FUKANEFUROMARIN D

A furanocoumarin that is 2,3-dihydrofuro[3,2-c]coumarin substituted by a hydroxy group at position 7, methyl groups at positions 2 and 3 (relatively trans configuration) and a 4,8-dimethyl-4(Z),7-nonadien-6-onyl moiety at position 2. Isolated from the roots of Ferula fukanensis, it inhibits production of nitric oxide (NO).


fukanefuromarin E

A furanocoumarin that is 2,3-dihydrofuro[3,2-c]coumarin substituted by a methoxy group at position 7, methyl groups at positions 2 and 3 (relatively cis configuration) and a 4-methyl-5-(4-methyl-2-furyl)-3(E)-pentenyl moiety at position 3. Isolated from the roots of Ferula fukanensis, it inhibits production of nitric oxide (NO).


fukanefuromarin F

A furanocoumarin that is 2,3-dihydrofuro[3,2-c]coumarin substituted by a methoxy group at position 7, methyl groups at positions 2 and 3 (relatively trans configuration) and a 4-methyl-5-(4-methyl-2-furyl)-3(E)-pentenyl moiety at position 3. Isolated from the roots of Ferula fukanensis, it inhibits production of nitric oxide (NO).


fukanefuromarin G

A furanocoumarin that is 2,3-dihydrofuro[3,2-c]coumarin substituted by methoxy group at position 7, methyl group at positions 2 and 3 (relatively trans configuration) and a 4-methyl-5-(4-methyl-2-furyl)-3(E)-pentenyl moiety at position 2. Isolated from the roots of Ferula fukanensis, it inhibits production of nitric oxide (NO).


A furanocoumarin that is 2,3-dihydrofuro[3,2-c]coumarin substituted by a hydroxy group at position 7, methyl groups at positions 2 and 3 (relatively trans configuration) and a 4,8-dimethyl-3(E)-7-nonadien-6-onyl moiety at position 2. Isolated from the roots of  Ferula fukanensis, it exhibits inhibitory effect on the production of nitric oxide (NO).


A furanocoumarin that is 2,3-dihydrofuro[3,2-c]coumarin substituted by a hydroxy group at position 7, methyl groups at positions 2 and 3 (relatively cis configuration) and a 4,8-dimethyl-3(E),7-nonadien-6-onyl moiety at position 2. Isolated from the roots of Ferula fukanensis and Ferula ferulioides, it exhibits inhibitory activity against production of nitric oxide (NO).


A furanocoumarin that is 2,3-dihydrofuro[3,2-c]coumarin substituted by a methoxy group at position 7, methyl groups at positions 2 and 3 (relatively cis configuration) and a 4-methyl-5-(4-methyl-2-furyl)-3(E)-pentenyl moiety at position 2. Isolated from the roots of Ferula fukanensis and Ferula ferulioides, it exhibits inhibitory activity against production of nitric oxide (NO).


fumimycin

A member of the class of 1-benzofurans that is 1-benzofuran-2(3H)-one substituted by a propenyl group at position 4, hydroxy groups at positions 5 and 6, methyl group at position 3 and a [(2E)-3-carboxyprop-2-enoyl]nitrilo group at position 3. Isolated from the fermentation broth of Aspergillus fumisynnematus F746, it exhibits antibacterial activity.


funalenone

An organic tricyclic compound that is 1H-phenalen-1-one which is substituted by hydroxy groups at positions 3,4,7, and 9, by a methoxy group at position 2, and by a methyl group at position 6. It is a collagenase inhibitor produced by Aspergillus niger.


furanocandin

A carbohydrate-containing antibiotic isolated from the fermentation broth of Trichothecium sp. It exhibits marked antifungal activity against the Candida species.


(+/-)-FUROWANIN B

A hydroxyisoflavone that is 8,9-dihydro-4H-furo[2,3-h]chromen-4-one substituted by a hydroxy group at position 5, a 3,4-dihydroxyphenyl group at position 3, a 2-hydroxypropan-2-yl group at position 8 and a prenyl group at position 6. Isolated from Millettia pachycarpa, it exhibits anti-estrogenic activity.


19-(2-furyl)nonadeca-5,7-diynoic acid

An acetylenic fatty acid that is nonadeca-5,7-diynoic acid substituted by a furan-2-yl group at position 19. Isolated from Polyalthia evecta, it exhibits anti-HSV-1 and antiplasmodial activity.


futokadsurin A

A lignan that is tetrahydrofuran substituted by methyl groups at positions 3 and 4 (relatively trans configuration), a 3,4-dimethoxyphenyl moiety at position 5 (relatively trans to the methyl group at position 4) and a 4-hydroxy-3-methoxyphenyl group at position 2 (relatively cis to the methyl group at position 3). Isolated from  the aerial parts of Piper futokadsura, it exhibits inhibitory activity against production of nitric oxide (NO).


futokadsurin B

A lignan that is tetrahydrofuran substituted by methyl groups at positions 3 and 4, a 3,4-dimethoxyphenyl group at position 5 and a 1,3-benzodioxol-5-yl moiety at position 2 (the 2S,3R,4R,5R stereoisomer). Isolated from the aerial parts of Piper futokadsura, it exhibits inhibitory activity against production of nitric oxide (NO).


futokadsurin C

A lignan that is tetrahydrofuran substituted by methyl groups at positions 3 and 4, a 3,4-dimethoxyphenyl group at position 5 and a 1,3-benzodioxol-5-yl moiety at position 2 (the 2R,3R,4S,5S stereoisomer). Isolated from the aerial parts of Piper futokadsura, it exhibits inhibitory activity against production of nitric oxide (NO).


fuzanin D

A diol that is hepta-4,6-diene-2,3-diol substituted by a 3-methylpyridin-2-yl group at position 7 (the 2R,3S,4E,6E stereoisomer). It is isolated from the culture broth of Kitasatospora sp. IFM10917 and exhibits cytotoxicity against human colon carcinoma cells.


GABOROQUINONE A

An anthraquinone that is anthracene-9,10-dione substituted by a 3-acetyl-4,6-dihydroxy-2-methoxyphenyl moiety at position 1, hydroxy groups at positions 4 and 5 and a hydroxymethyl group at position 2. Isolated from the roots of  Bulbine frutescens, it exhibits antiplasmodial and antitrypanosomal activities.


A a galloyl beta-D-glucose compound having a galloyl group at the 6-position. Isolated from the leaves of Sapium sebiferum, it exhibits antihypertensive activity.


A quercetin O-glucoside in which quercetin is attached to a alpha-L-arabinofuranosyl group at position 3 via a glycosidic linkage while the hydroxy group at position 5 is replaced by a galloyl group. Isolated from the young leaves of Calycolpus warscewiczianus, it exhibits activity against a chloroquine-resistant strain of Plasmodium falciparum.


A gallate ester obtained by the formal condensation of gallic acid with the hydroxy group at position 7 of 3',4',5',5,7-pentahydroxyflavan. Isolated from the leaves of Pithecellobium clypearia, it exhibits antiviral activity.


A diester obtained by the formal condensation of gallic acid  with the hydroxy groups at positions 7 and 4' of 3',4',5',5,7-pentahydroxyflavan. Isolated from the leaves of Pithecellobium clypearia, it exhibits antiviral activity.


GANODERONE A

A tetracyclic triterpenoid that is 5alpha-lanosta-8,24-diene substituted by a hydroxy group at position 26 and oxo groups at positions 3 and 7. Isolated from the fruiting bodies of Ganoderma pfeifferi, it exhibits against herpes simplex virus.


GANODERONE C

A tetracyclic triterpenoid that is 5alpha-lanosta-8-ene with an epoxy group across positions 24 and 25, a hydroxy group at position 26 and oxo groups at positions 3 and 7. Isolated from the fruiting bodies of Ganoderma pfeifferi, it exhibits antiviral activity against influenza A virus.


garciniaxanthone F

An organic heteropentacyclic compound that is 6H-furo[3,2-c]xanthen-6-one substituted by hydroxy groups at positions 7 and 10, 2-methoxypropan-2-yl group at position 2 and a 2-methylbut-3-en-2-yl group at position 8. Isolated from the woods of Garcinia subelliptica, it exhibits antioxidant activity.


garciniaxanthone G

An organic heteropentacyclic compound that is 6H-furo[3,2-c]xanthen-6-one substituted by hydroxy groups at positions 7 and 10 and a 2-methylbut-3-en-2-yl group at position 8. Isolated from the woods of Garcinia subelliptica, it exhibits antioxidant activity.


garciniaxanthone H

A member of the class of xanthones that is 9H-xanthen-9-one substituted by hydroxy groups at positions 2, 5 and 8, methoxy group at position 1 and a 2-methylbut-3-en-2-yl group at position 4. Isolated from the woods of Garcinia subelliptica, it exhibits antioxidant activity.


gaudichaudiic acid F

An organic heteroheptacyclic compound isolated from the bark of Indonesian Garcinia gaudichaudii and exhibits cytotoxic activity.


GEDUNIN

A pentacyclic triterpenoid natural product found  particularly in Azadirachta indica and Cedrela odorata.


gelomulide K

An abietane diterpenoid that is ent-abieta-2(3),13(15)-diene-16,12-olide substituted by a 1beta-acetoxy group and a beta-epoxy group across positions 8 and 14. Isolated from the leaves of Gelonium aequoreum, it exhibits moderate cytotoxicity against lung (A549), breast (MDAMB-231 and MCF7), and liver (HepG2) cancer cell lines.


gelomulide M

An abietane diterpenoid that is ent-abieta-2(3),13(15)-diene-16,12-olide substituted by beta-acetoxy groups at positions 1 and 7 and a beta-epoxy group across positions 8 and 14. Isolated from the leaves of Gelonium aequoreum, it exhibits moderate cytotoxicity against lung (A549), breast (MDAMB-231 and MCF7), and liver (HepG2) cancer cell lines.


A iridoid monoterpenoid isolated from the aerial parts of Verbena litoralis and shown to possess stimulating effects on nerve growth factor.


A member of the class of benzophenones that is benzophenone substituted by a geranyl group at position 3 and hydroxy groups at positions 2, 4 and 6 respectively. Isolated from   Leontonyx and Garcinia vieillardii, it exhibits a significant antileishmanial activity.


geumonoid

A triterpenoid isolated from whole plants of Geum japonicum and has been shown to exhibit inhibitory activity against HIV-1 protease.


gibberosin K

A  diterpenoid of the xeniaphyllane type isolated from Sinularia gibberosa and has been shown to exhibit  antineoplastic activity.


gibberosin L

A diterpenoid of the xeniaphyllane type isolated from Sinularia gibberosa and has been shown to exhibit antineoplastic activity.


gigantetronenin

A member of the class of oxolanes that is tetrahydrofuran substituted by a  6-hydroxy-7-(5-methyl-2-oxo-2,5-dihydrofuran-3-yl)heptyl group at position 2 and a (8Z)-1,4,5-trihydroxyhenicos-8-en-1-yl group at position 5. Isolated from Goniothalamus giganteus, it exhibits cytotoxic activity.


GIGANTRIONENIN

A member of the class of oxolanes that is tetrahydrofuran substituted by a 7-[5-methyl-2-oxo-2,5-dihydrofuran-3-yl]heptyl at position 2 and a 1,4,5-trihydroxyhenicos-8-en-1-yl group at position 5. Isolated from Goniothalamus giganteus, it exhibits cytotoxic activity.


gilvusmycin

An antibiotic isolated from the culture broth of Streptomyces sp. QM16 with potent cytotoxic activity against the human tumor cells.


glionitrin A

A pyrazinoindole with a disulfide bridge spanning a dioxo-substituted pyrazine ring. It is an antibiotic isolated from the microbial strains Sphingomonas and Aspergillus fumigatus, and exhibits cytotoxic activity against four human cancer cell lines: HCT-116, A549, AGS, and DU145.


glioperazine B

A member of the class of 2,5-diketopiperazines with an indole substituent. It is a microbial metabolite isolated from the mycelia of a liquid fermentation culture of the fungus, Bionectria byssicola and has been shown to exhibit antibacterial activity against Staphylococcus aureus.


glochierioside A

A triterpenoid saponin that is 3beta,16beta,28-trihydroxyolean-12-ene substituted by a beta-benzoyloxy group at position 22 and a 3-O-(beta-D-glucopyranosyl)-alpha-L-arabinopyranosyl  group at position 3 via a glycosidic linkage. Isolated from Glochidion eriocarpum, it exhibits cytotoxicity against human cancer cell lines.


glochierioside B

A triterpenoid saponin that is 3beta,16beta,28-trihydroxyolean-12-ene substituted by a beta-benzoyloxy group at position 22 and a 3-O-(beta-D-glucopyranosyl)-beta-D-xylopyranosyl group at position 3 via a glycosidic linkage. Isolated from Glochidion eriocarpum, it exhibits cytotoxicity against human cancer cell lines.


glomosporin

A cyclodepsipeptide consisting of a 3,4-dihydroxy-4-methylhexadecanoyl group attached to the amino terminus of the linear heptapeptide Ser-D-Ala-Asp-Asn-Asn-Ser-D-allo-Thr which is cyclised head-to-tail via the 3-hydroxy group on the hexadecanoyl chain. It is an antifungal drug isolated from  the barley solid culture of the fungus Glomospora sp.


GLYCYRRHIZOL A

A member of the class of coumestans that is 3,4-didehydroterocarpan substituted by hydroxy groups at positions 7 and 4', a methoxy group at position 5 and prenyl groups at positions 6 and 5'. Isolated from the roots of Glycyrrhiza uralensis, it exhibits antibacterial activity.


GLYCYRRHIZOL B

An organic heteropentacyclic compound that is 2H-pyrano[3',4',5'',6'']-pterocarpene substituted by a hydroxy group at position 7, a methoxy group at position 5 and geminal methyl groups at position 2''. Isolated from the roots of Glycyrrhiza uralensis, it exhibits antibacterial activity.


gnidilatimonoein

A diterpenoid isolated from the leaves of Daphne mucronata and exhibits anti-tumour and anti-metastatic activities.


GRAMINONE B

A lignan that is tetrahydro-1H,3H-furo[3,4-c]furan-1-one substituted by a 3-hydroxy-4,5-dimethoxyphenyl at position 3 and a 3-hydroxy-4,5-dimethoxyphenyl group at position 5. Isolated from the rhizomes of Imperata cylindrica, it exhibits vasodilative activity.


grassypeptolide

A 31-membered macrocyclic cyclodepsipeptide isolated from the cyanobacterium Lyngbya confervoides and has been shown to exhibit antineoplastic activity.


A member of the class tetralins that is 3,4-dihydronaphthalen-1(2H)-one substituted by an acetyl, two hydroxy and methyl groups at positions 7, 3, 6 and 8 respectively. It isolated from Micromonospora and acts as an inhibitor of lipid peroxidation.


guangsangon K

A member of the class of polyphenols consisting of a methylcyclohexene ring attached to a 2,4-dihydroxyphenyl, 2,4-dihydroxybenzoyl and dihydroflavonol moieties at positions 5'', 4'' and 3'' respectively. Regarded biogenetically as a Diels-Alder adduct, it is isolated from the stem barks of Morus macroura and exhibits antioxidant activity.


guangsangon L

A member of the class of polyphenols consisting of a methylcyclohexene ring attached to a 2,4-dihydroxyphenyl, 2,4-dihydroxybenzoyl and 2,4-dihydroxybenzaldehyde moieties at positions 5'', 4'' and 3'' respectively. Regarded biogenetically as a Diels-Alder adduct, it is isolated from the stem barks of Morus macroura and exhibits antioxidant activity.


guangsangon M

A member of the class of polyphenols consisting of a methylcyclohexene ring attached to a 2,4-dihydroxyphenyl, 2,4-dihydroxybenzoyl and  trihydroxyflavanone moieties at positions 5'', 4'' and 3'' respectively (the 2R,3''R,4''R,5''S stereoisomer). Regarded biogenetically as a Diels-Alder adduct, it is isolated from the stem barks of Morus macroura and exhibits antioxidant activity.


guangsangon N

A member of the class of polyphenols consisting of a methylcyclohexene ring attached to a 2,4-dihydroxyphenyl, 2,4-dihydroxybenzoyl and trihydroxyflavanone moieties at positions 5'', 4'' and 3'' respectively (the 2S,3''R,4''R,5''S stereoisomer). Regarded biogenetically as a Diels-Alder adduct, it is isolated from the stem barks of Morus macroura and exhibits antioxidant activity.


gummiferaoside A

A triterpenoid saponin isolated from the roots of of the Madagascan plant Albizia gummifera and has been shown to exhibit cytotoxicity against human ovarian cancer cell line.


gutolactone

A  quassinoid isolated from Simaba guianensis and has been shown to exhibit antimalarial activity.


gypsosaponin A

A triterpenoid saponin with quillaic acid as the aglycone species. It is isolated from the roots of Gypsophila oldhamiana and exhibits inhibitory activity against pancreatic lipase.


gypsosaponin B

A triterpenoid saponin with gypsogenin  as the aglycone species. It is isolated from the roots of Gypsophila oldhamiana and exhibits inhibitory activity against pancreatic lipase.


gypsosaponin C

A triterpenoid saponin with gypsogenic acid as the aglycone species. It is isolated from the roots of Gypsophila oldhamiana and exhibits inhibitory activity against pancreatic lipase.


A  meroterpenoid that is hexadeca-2,6,14-triene-5,12-dione substituted by a hydroxy group at position 13, a 2-hydroxy-5-methoxy-3-methylphenyl group at position 1 and methyl groups at positions 3, 7, 11 and 15. Isolated from Halidrys siliquosa, it exhibits antibacterial and antifouling activities.


halosterol A

A 3-oxo steroid that is stigmast-4-en-3-one substituted by a hydroxy group at position 22 (the 22R stereoisomer). Isolated from the whole plants of Haloxylon recurvum, it exhibits chymotrypsin inhibitory activity.


halosterol B

A 3beta-hydroxy steroid that is (3beta)-stigmasta-4,6-diene-3-ol with an additional hydroxy group at position 22 (the 22R stereoisomer). Isolated from the whole plants of Haloxylon recurvum, it exhibits chymotrypsin inhibitory activity.


hamacanthin A

A member of the class of pyrazinones that is 5,6-dihydropyrazin-2(1H)-one substituted  at positions 3 and 6 by 6-bromo-1H-indol-3-yl groups. It is an antifungal drug isolated from deep water marine sponge Hamacantha sp.


HAMACANTHIN B

An optically active form of hamacanthin A having S-configuration. It is an antifungal drug isolated from deep water marine sponge Hamacantha sp.


N-butylharmine

A member of the class of beta-carbolines that is 9H-beta-carboline substituted by a butyl group at position 9, methoxy group at position 7 and a methyl group at position 1. It is semisynthetic derivative of harmine and has been shown to exhibit significant anti-HIV activity.


N-ethylharmine

A member of the class of beta-carbolines that is 9H-beta-carboline substituted by a ethyl group at position 9, methoxy group at position 7 and a methyl group at position 1. It is semisynthetic derivative of harmine and has been shown to exhibit significant anti-HIV activity.


A member of the class of beta-carbolines that is 9H-beta-carboline substituted by a methoxy group at position 7 and methyl groups at positions 1 and 2. It is a semisynthetic derivative of harmine and has been shown to exhibit significant anti-HIV activity.


harziphilone

A member of the class of isochromanes that is 1,5,6,7-tetrahydro-8H-isochromen-8-one substituted by hydroxy groups at positions 6 and 7, a methyl group at position 7 and a penta-1,3-dien-1-yl moiety at position 3. Isolated from the fermentation broth of Trichoderma harzianum, it exhibits anti-HIV activity.


hederacine A

An alklaoid isolated from Glechoma hederaceae.


hederacine B

An alkaloid isolated from Glechoma hederaceae.


hedychilactone D

A labdane diterpenoid that is 7,11,13-labdatrien-16,15-olide substituted by a hydroxy group at position 7 and an oxo group at position 6. Isolated from the rhizomes of Hedychium spicatum, it exhibits cytotoxicity against the Colo-205 (Colo-cancer), A-431 (skin cancer), MCF-7 (breast cancer), A-549 (lung cancer) and Chinese hamster ovary cells (CHO).


LYCORINE

An  indolizidine alkaloid that is 3,12-didehydrogalanthan substituted by hydroxy groups at positions and 2 and a methylenedioxy group across positions 9 and 10. Isolated from Crinum asiaticum, it  has been shown to exhibit antimalarial activity.


9-hydroxy hedychenone

A labdane diterpenoid that is 15,16-epoxy-7,11,13(16)14-labdatetraen-6-one substituted by a hydroxy group at position 9. Isolated from the rhizomes of Hedychium spicatum, it exhibits cytotoxicity against the Colo-205 (Colo-cancer), A-431 (skin cancer), MCF-7 (breast cancer), A-549 (lung cancer) and Chinese hamster ovary cells (CHO).


hernandonine

An oxoaporphine alkaloid isolated from Hernandia ovigera and Lindera chunii and has been shown exhibit inhibitory activity against HIV-1 integrase .


herquline B

An alkaloid comprising of  a piperazine and cyclohexenone ring systems. Isolated from Penicillium herquei, it exhibits inhibitory activity against platelet aggregation.


hesseltin A

An organic heteropentacyclic compound with a mixed polyketide-terpenoid origin isolated from Penicillium hesseltinei. It has been shown to exhibit antiviral activity.


HIRSUTELLIDE A

A cyclodepsipeptide isolated from the cell extract of the entomopathogenic fungus Hirsutella kobayasii BCC 1660 and exhibits antimycobacterial and antimalarial activities.


HISPIDOSPERMIDIN

A bridged compound with a trimethylspermidine side chain. It is isolated from Chaetosphaeronema hispidulum (Cda) Moesz NR 7127 and has been shown to exhibit inhibitory activity against phosphatidylinositol-specific phospholipase C (PLC).


lycoxanthin

A carotenol that is  carotenol psi,psi-carotene substituted by a hydroxy group.


HOOKERIANAMIDE H

A steroid alkaloid that is 5alpha-pregn-2-ene-4-one substituted by a N-formylamino group at position 3 and a N,N-dimethylamino group at position 20. Isolated from Sarcococca hookeriana, it exhibits antiplasmodial activity and inhibitory activity against cholinesterase.


HOOKERIANAMIDE I

A steroid alkaloid that is 5alpha-pregnane substituted by a N-methylamino group at position 20 and a beta-N-methylbenzamido group at position 3. Isolated from Sarcococca hookeriana, it exhibits antiplasmodial activity and inhibitory activity against cholinesterase.


HOOKERIANAMIDE J

A steroid alkaloid that is 5alpha-preg-16-ene substituted by a hydroxy group at position 4, a N,N-dimethylamino group at position 20 and a N-senecoylamino group at position 3 (the 3beta,4beta,20S stereoisomer). Isolated from Sarcococca hookeriana, it exhibits antileishmanial and antibacterial activities.


HOOKERIANAMIDE K

A steroid alkaloid that is pregn-4,14-diene substituted by N-dimethylamino groups at positions 3 and 20 (the 3beta,20S stereoisomer). Isolated from Sarcococca hookeriana, it exhibits antileishmanial and antibacterial activities.


1beta-hydroxy arbusculin A

A sesquiterpene lactone that is the 1beta-hydroxy derivative of arbusculin A. Isolated from Saussurea lappa, it exhibits inhibitory activity against melanogenesis.


7alpha-hydroperoxy manool

A labdane diterpenoid that is labda-8(17),14-diene substituted by a (R)-hydroxy group at position 13 and an alpha-hydroperoxy group at position 7. Isolated from the aerial parts of Aster spathulifolius, it exhibits moderate cytotoxicity against human cancer cells.


A monoterpenoid that is (2E)-oct-2-enoic acid substituted by hydroxy group at position 8 and methyl groups at positions 2 and 6 respectively (the 6R stereoisomer). Isolated from the Chinese herb Cistanche salsa, It exhibits anti-osteoporotic activity.


A beta-hydroxy ketone that is (5R)-5-hydroxyheptan-3-one substituted by a phenyl group at position 1 and a 4-hydroxy-3-methoxyphenyl moiety at position 7. Isolated from Alpinia officinarum, it exhibits antiviral activity against influenza virus.


A naphthofuran that is naphtho[2,3-b]furan-4,9-dione substituted by a hydroxy group at position 5 and a 1-hydroxyethyl group at position 2 (the S stereoisomer). Isolated from Tabebuia impetiginosa and Tabebuia avellanedae, it exhibits antineoplastic activity.


A naphthofuran that is naphtho[2,3-b]furan-4,9-dione substituted by a hydroxy group at position 8 and a 1-hydroxyethyl group at position 2. Isolated from Tabebuia impetiginosa and Kigelia pinnata, it exhibits antineoplastic activity.


A benzothiazine that is 2H-1,4-benzothiazin-3(4H)-one substituted by a hydroxy and a hydroxymethyl group at positions 7 and 5 respectively. It is an antibacterial agent from Ampelomyces.


A monohydroxyflavanone that is (2S)-flavanone substituted by a hydroxy group at position 5, a methoxy group at position 7 and a (1E)-3-oxobut-1-en-1-yl group at position 8. Isolated from  Tephrosia toxicaria, it exhibits anti-cancerous activity.


A ketone that is heptan-3-one substituted by a 4-hydroxy-3-methoxyphenyl group at position 7, a methoxy group at position 5 and a phenyl group at position 1. Isolated from Alpinia officinarum, it exhibits antineoplastic and inhibitory activity against prostaglandin biosynthesis.


A ketone that is heptan-3-one substituted by a 4-hydroxy-3-methoxyphenyl group at position 1 and a phenyl group at position 7. Isolated from in Alpinia oxyphylla, it exhibits antineoplastic and inhibitory activities against COX-1, COX-2 and NO synthase.


An enone that is 4E-heptene-3-one substituted by a 4-hydroxy-3-methoxyphenyl group at position 7 and a phenyl group at position 1. Isolated from Alpinia officinarum, it exhibits antineoplastic activity.


A p-menthane monoterpenoid that is p-menth-2-ene substituted by a hydroperoxy group at position 1 and an acetyloxy group at position 8 (the 1R,4S stereoisomer). Isolated from the leaves of Laurus nobilis, it exhibits trypanocidal activity.


A methoxyflavan that consists of (2S)-flavan substituted by hydroxy group at position 2' and methoxy groups at positions 7, 8, 3', 4' and 5' . Isolated from the roots of  Muntingia calabura, it exhibits anticancer activity.


A beta-hydroxy ketone that is pentan-3-one with a hydroxy group at position 1 and a phenyl group at position 5. Isolated from the edible mushroom Mycoleptodonoides aitchisonii, it exhibits protective activity against endoplasmic reticulum (ER) stress-dependent cell death.


name: (10E,12Z,15Z)-9-hydroxy-10,12,15-octadecatrienoic acid methyl ester

description: A fatty acid methyl ester isolated from leaves and twigs of Ehretia dicksonii. It exhibits anti-inflammatory and inhibition of lipoxygenase activities.


An oxylipin that is the 15-hydoxy derivative of (6Z,9Z,12Z,16E,18Z)-tetracosa-6,9,12,16,18-pentaenoic acid. Isolated from soft cora Sinularia numerosa, it exhibits anti-angiogenic activity.


lysergic acid

An ergoline alkaloid comprising 6-methylergoline having additional unsaturation at the 9,10-position and a carboxy group at the 8-position.


A monohydroxyflavone that is flavone with a hydroxy substituent at position 5 and methoxy groups at positions 7, 2', 4' and 5'. Isolated from Calliandra californica, it exhibits antibacterial activity.


An  indole alkaloid that is canthin-6-one substituted by a hydroxy group at position 9. Isolated from the roots of Eurycoma longifolia, it exhibits antineoplastic activity.


1-hydroxycrisamicin A

An organic heterotetracyclic compound isolated from the culture broth of Micromonospora sp. SA-246. It exhibits potent antibacterial activity against several Gram-positive bacterial strains.


A gamma-lactone that is dihydrofuran-2(3H)-one substituted by a hydroxyethyl group at position 3 and a methyl group at position 4 (the 3R,4S,1'R stereoisomer). Isolated from an edible mushroom Mycoleptodonoides aitchisonii, it exhibits protective activity against endoplasmic reticulum (ER) stress dependent cell death.


A member of the class of 1-benzofurans that is 2,3-dihydro-1-benzofuran substituted by a hydroxy group at position 3, a hydroxyisopropyl group at position 2, a carboxy group at position 5 and a prenyl group at position 7 (the 2S,3S stereoisomer) . Isolated from the rhizomes of Atractylodes lancea, it exhibits cytotoxicity against cancer cell lines HCT-116 and MKN-45.


A pentacyclic triterpenoid that is lupan-30-al with a hydroxy substituent at position 28 and an oxo group at position 3 (the 20R stereoisomer) . Isolated from  Acacia mellifera, it exhibits cytotoxicity activity against the NSCLC-N6 cell line, derived from a human non-small-cell bronchopulmonary carcinoma.


6-hydroxyluteolin 7-O-laminaribioside

A glycosyloxyflavone that is 6-hydroxyluteolin attached to a beta-D-glucopyranosyl-(1->3)-beta-D-glucopyranosyl moiety at position 7 via a glycosidic linkage. Isolated from Globularia cordifolia and Globularia alypum, it exhibits antioxidant activity.


A butenolide that is furan-2(5H)-one substituted by a hydroxymethyl group at position 3 and a methyl group at position 4. Isolated from an edible mushroom  Mycoleptodonoides aitchisonii, it exhibits protective activity against endoplasmic reticulum (ER) stress dependent cell death.


A hydroxyisoflavanone that is 2,3-dihydroneobavaisoflavone with an additional hydroxy group at position 2'. Isolated from Erythrina lysistemon, it exhibits anti-HIV activity.


A pentacyclic triterpenoid that is olean-12-ene substituted by an oxo substituent at position 3 and a beta-hydroxy group at position 21. Isolated from the root barks of Hippocratea excelsa, it exhibits antigiardial activity.


Lysergide

An ergoline alkaloid arising from formal condensation of lysergic acid with diethylamine.


A sesquiterpenoid that is zerumbone substituted by a hydroxy group at position 5. Isolated from the rhizomes Zingiber zerumbet, it has been found to inhibit lipopolysaccharide-induced nitric oxide production.


HYEMALOSIDE A

A beta-D-glucoside compound having galloyl groups at positions 2, 3 and 6 and a 4-hydroxyphenyl substituent at the 1-position. Isolated from Eugenia hyemalis, it exhibits inhibitory activity against HIV-1.


HYEMALOSIDE C

A beta-D-glucoside compound having a a hexahydroxydiphenoyl (HHDP) group bridging over positions 4 and 6, galloyl groups at positions 2 and 3 and a 4-hydroxyphenyl substituent at the 1-position. Isolated from Eugenia hyemalis, it exhibits inhibitory activity against HIV-1.


A member of the class of xanthones that is 5-O-demethylpaxanthonin, in which hydroxy group at position 6 is replaced by a hydrogen. Isolated from the leaves of Hypericum styphelioides, it exhibits antioxidant activity.


hyperinol A

A hexacyclic triterpenoid that is 13,28-epoxyursan-28-one with a terminal double bond between positions 20(30) and is substituted by a hydroxy group at position 3 (the 3beta,19alpha stereoisomer). It is a taraxastane-type triterpene isolated from  Hypericum oblongifolium and exhibits enzyme inhibitory activity against chymotrypsin.


hyperinol B

A hexacyclic triterpenoid that is 13,28-epoxyursan-28-one with a terminal double bond between positions 20(30) and is substituted by hydroxy groups at position 3 and 22 (the 3beta,19alpha,22alpha stereoisomer). It is a taraxastane-type triterpene isolated from Hypericum oblongifolium and exhibits enzyme inhibitory activity against chymotrypsin.


hyperixanthone A

A member of the class of xanthones that is 1H-xanthene-2,9-dione substituted by hydroxy groups at positions 3, 6 and 8, a 2-methylbut-3-en-2-yl group at position 5 and two prenyl groups at position 1. IT has been isolated from Hypericum erectum and Hypericum sampsonii.


HYPERXANTHONE C

A member of the class of xanthones that is 2,3,6,8-tetrahydroxyxanthone substituted by a 2-hydroxy-3-methylbut-3-enyl group at position 1. Isolated from the aerial parts of Hypericum scabrum, it exhibits cytotoxicity for human tumour cells.


HYPERXANTHONE E

A pyranoxanthene that is 2,3-dihydropyrano[3,2-a]xanthen-12(1H)-one substituted by hydroxy groups at positions 5, 9 and 11 and geminal methyl groups at position 3. Isolated from the aerial parts of Hypericum scabrum, it exhibits cytotoxicity for human tumour cells.


HYPOCRELLIN D

An organic polycyclic compound that is a cytotoxic fungal pigment isolated from the fruiting bodies of the ascomycete Shiraia bambusicola.


HYPOGLAUNINE B

A sesquiterpene alkaloid that is a macrolide incorporating a substituted pyridine and dihydroagarofuran moieties. Isolated from root barks of Tripterygium hypoglaucum, it exhibits anti-HIV activity.


A scalarane sesterterpenoid isolated from the marine sponge Hyrtios erectus that exhibits antineoplastic activity.


An indole alkaloid that is canthin-6-one substituted by a hydroxy group at position 10. Isolated from Simaba multiflora, it exhibits antineoplastic activity.


A N-oxide isolated from Streptoalloteichus sp.1454-19. It is a siderophore which exhibits immunosuppressive activity on a mixed lymphocyte culture reaction (MLCR).


A C-nitro compound isolated from Streptoalloteichus sp.1454-19. It is a siderophore which exhibits immunosuppressive activity on a mixed lymphocyte culture reaction (MLCR).


An aldoxime isolated from Streptoalloteichus sp.1454-19. It is a siderophore which exhibits immunosuppressive activity on a mixed lymphocyte culture reaction (MLCR).


igalan

A sesquiterpene lactone that is  hexahydro-1-benzofuran-2(3H)-one substituted by a methyl group at position 6, methylene group at position 3, isopropenyl group at position 5 and a vinyl group at position 6. Isolated from Inula helenium and Rudbeckia laciniata, it exhibits antiproliferative activity.


impatienolate

An  organic sodium salt that is the disodium salt of impatienol. Isolated from the corolla of Impatiens balsamina, it exhibits inhibitory activity against COX-2.


ISOIMPERATORIN

A member of the class of psoralens that is psoralen substituted by a prenyloxy group at position 5. Isolated from Angelica dahurica and Angelica koreana, it acts as a acetylcholinesterase inhibitor.


indicanone

A guaiane sesquiterpenoid that is 4,5,6,7-tetrahydroazulen-2(1H)-one substituted by a hydroxymethyl group at position 8, a methyl group at position 3 and an isopropenyl group at position 5. Isolated from the roots of Wikstroemia indica, it exhibits antiinflammatory activity.


A beta-D-glucoside compound having a (3-methylbutanoyl)phloroglucinyl moiety at the anomeric position. Isolated from the whole plant of Indigofera heterantha, it exhibits lipoxygenase inhibitory activity.


A beta-D-glucoside compound having a (pentanoyl)-phloroglucinyl moiety at the anomeric position. Isolated from the whole plant of Indigofera heterantha, it exhibits lipoxygenase inhibitory activity.


INFLEXIN

An ent-kaurane diterpenoid that is ent-kaur-16-ene substituted by an alpha-hydroxy group at position 1, beta-acetoxy groups at positions 3 and 6a and oxo groups at positions 11 and 15. Isolated from Isodon excisus and Rabdosia inflexa,it acts as an aromatase inhibitor.


integracin A

A benzoate ester obtained by the formal condensation of the hydroxy group of 5-(8-hydroxyundecyl)benzene-1,3-diol with 4,6-dihydroxy benzoic acid which is also substituted by a 8-(acetoxy)undecyl group at position 2. It is isolated from Cytonaema sp. and has anti-HIV-1 activity.


integracin B

A benzoate ester obtained by the formal condensation of the hydroxy group of 5-(8-hydroxyundecyl)benzene-1,3-diol with 4,6-dihydroxy benzoic acid which is also substituted by a 8-hydroxyundecyl group at position 2. It is isolated from Cytonaema sp. and has anti-HIV-1 activity.


integracin C

A benzoate ester obtained by the formal condensation of the hydroxy group of 5-(8-hydroxyundecyl)benzene-1,3-diol with 4,6-dihydroxy benzoic acid which is also substituted by a undec-7-en-1-yl group at position 6. It is isolated from Cytonaema sp. and has anti-HIV-1 activity.


integrastatin A

An organic heterotetracyclic compound  that is 6H-6,12-epoxydibenzo[b,f]oxocin-11(12H)-one substituted by hydroxy groups at positions 4, 7 and 8, a hydroxymethyl group position 1, methyl groups at positions 6 and 12 and methoxy groups at positions 3 and 9. It is isolated as a racemate from Unidentified fungi (New mexico) and has been shown to exhibit inhibitory activity against HIV-1 integrase.


integrastatin B

An organic heterotetracyclic compound that is 11,12-dihydro-6H-6,12-epoxydibenzo[b,f]oxocine substituted by hydroxy groups at positions 4, 7 and 8, methoxy groups at positions 3 and 9, methyl groups at positions 6 and 12, an oxo group at position 11 and a formyl group at position 1. It is isolated as a racemate from Ascochyta and  exhibits inhibitory activity against HIV-1 integrase.


integric acid

An eremophilane sesquiterpenoid with anti-HIV-1 activity. It is isolated from Xylaria sp. MF6254.


INTERIOTHERIN A

A  lignan with a dibenzocyclooctadiene skeleton isolated from Kadsura interior and has been shown to exhibit anti-HIV activity.


INTERIOTHERIN B

A lignan with a dibenzocyclooctadiene skeleton attached to a fatty acid ester side chain. It is isolated from Kadsura interior and has been shown to exhibit anti-HIV activity.


A  glycosyloxyisoflavone that is irilone attached to a  6-O-beta-D-glucopyranosyl-beta-D-glucopyranosyl moiety at position 4' via a glycosidic linkage. Isolated from Iris pseudopumila, it exhibits antioxidant activity.


isoscutellarein glycoside

A C-glycosyl compound that is isoscutellarein attached to a  beta-D-glucopyranosyl moiety at position 6 via a C-glycosidic linkage. Isolated from the rhizomes of Iris pseudopumila, it exhibits antioxidant activity.


ISARIOTIN F

An organic heterobicyclic compound that is a lactol isolated from the entomopathogenic fungus Isaria tenuipes and exhibits antimalarial and antineoplastic activities.


isatinone A

An indole alkaloid that is 1,3-dihydro-2H-indol-2-one substituted by a methoxy(phenyl)methylidene group at position 3 (the 3E stereoisomer). Isolated from Isatis costata, it exhibits antifungal activity.


isatinone B

An indole alkaloid isolated from Isatis costata and exhibits antifungal activity.


ISOSECOTANAPARTHOLIDE

A sesquiterpene lactone isolated from Artemisia rutifolia and Artemisia iwayomogi and has been shown to inhibit nitric oxide synthase.


A sesquiterpene lactone that is isosecotanapartholide in which the hydroxy group at position 3 is replaced by a methoxy group. Isolated from Artemisia iwayomogi and Tanacetum cilicicum, it acts as an inhibitor of nitric oxide synthase.


isochamaejasmenin B

A biflavonoid that consists of two units of 5,7-dihydroxy-4'-methoxyflavanone attached at the C-3 position (the meso-isomer). Isolated from Stellera chamaejasme, it exhibits antimitotic and antifungal activity.


isochamuvaritin

A member of the class of a xanthenes that is 9H-xanthene substituted by hydroxy groups at positions 1 and 3, a 2-hydroxybenzyl group at position 2 and a 3-phenylpropanoyl group at position 4. Isolated from the roots of Uvaria acuminata, it exhibits potent cytotoxicity against human promyelocytic leukemia HL-60 cells.


isoiguesterin

A pentacyclic triterpenoid that is a bisnortriterpene isolated from Salacia madagascariensis and exhibits antileishmanial and antileukemic activities.


isonymphaeol B

A tetrahydroxyflavanone that is (2S)-flavanone substituted by hydroxy groups at positions 5, 7, 3' and 4 and a geranyl group at position 5'. Isolated from Propolis from Okinawa, Japan, it exhibits radical scavenging activity.


A glycosyloxyflavone that consists of isorhamnetin substituted by a alpha-L-(6''''-p-coumaroyl-beta-D-glucopyranosyl)-(1->2)-rhamnopyranosyl moiety at position 3 via a glycosidic linkage. Isolated from Ginkgo biloba, it exhibits antioxidant activity.


ISOTANSHINONE IIB

A diterpenoid that is  1,2,3,4-tetrahydrophenanthro[3,2-b]furan-7,11-dione substituted by a hydroxymethyl group at position 4 and methyl groups at positions 4 and 8 respectively. Isolated from Salvia miltiorrhiza, it exhibits platelet aggregation inhibitory activity.


isowigtheone hydrate

A member of the class of 7-hydroxyisoflavones that is isoflavone substituted by hydroxy groups at positions 5, 7 and 4' and a 3-hydroxy-3-methylbutyl moiety at position 3'. Isolated from the root barks of Brosimum utile, it exhibits cytotoxicity  against cell lines like MCF7 (human breast carcinoma), PC3 (human prostate carcinoma), HT29 (human colon cancer) and human dermis fibroblasts.


lythramine

A piperidine alkaloid that is lythranidine with the hydroxy group C-10 esterified into an acetate and a methylene bridge formed between the hydroxy at C-9 and the piperidine nitrogen.


ixerochinolide

A sesquiterpene lactone isolated from  Ixeris chinensis and has been shown to exhibit cytotoxic activity against human PC-3 tumor cells.


jacarelhyperol A

A member of the class of  pyranoxanthones isolated from Hypericum japonicum. It has been found to exhibit inhibitory activity against platelet-activating factor (PAF)-induced hypertension.


jacarelhyperol B

A member of the class of pyranoxanthones isolated from Hypericum japonicum. It has been found to exhibit inhibitory activity against platelet-activating factor (PAF)-induced hypertension.


JACEOSIDINE

A trihydroxyflavone that is flavone with hydroxy groups at positions 5, 7 and 4' and methoxy groups at positions 3' and 6. Isolated from Salvia tomentosa and Artemisia asiatica, it exhibits anti-allergic, anti-inflammatory and apoptosis inducing activties.


JASPAMIDE

A cyclodepsipeptide isolated from Jaspis splendens and has been shown to exhibit antineoplastic activity. It is an actin polymerization and stabilization inducer.


JASPLAKINOLIDE B

A cyclodepsipeptide isolated from Jaspis splendens. A derivative of jaspamide, it exhibits anti-tumour activity.


jaspamide H

A cyclodepsipeptide isolated from Jaspis splendens. A derivative of jaspamide, it has been shown to exhibit cytotoxic and microfilament disruption activity.


JERANTININE A

An indole alkaloid that is tabersonine substituted by hydroxy group at position 10 and a methoxy group at position 11. Isolated from Tabernaemontana corymbosa and Hazunta modesta, it exhibits cytotoxicity against human KB cells.


JERANTININE B

An indole alkaloid that is tabersonine substituted by a hydroxy group at potition 10, a methoxy group at position 11 and an epoxy group across positions 14 and 15. Isolated from Tabernaemontana corymbosa, it exhibits cytotoxicity against human KB cells.


JERANTININE C

An indole alkaloid that is jerantinine A substituted with an oxo group at position 13.  Isolated from Tabernaemontana corymbosa, it exhibits cytotoxicity against human KB cells.


JERANTININE D

An  indole alkaloid that is jerantinine C substituted by an epoxy group across positions 14 and 15. Isolated from Tabernaemontana corymbosa, it exhibits cytotoxicity against human KB cells.


JERANTININE E

An indole alkaloid that is the 14-15-dihydro derivative of jerantinine A. Isolated from Tabernaemontana corymbosa, it exhibits cytotoxicity against human KB cells.


JERANTININE F

An indole alkaloid isolated from Tabernaemontana corymbosa, and has been shown to exhibit cytotoxicity against human KB cells.


JINEOL

A dihydroxyquinoline that is quinoline substituted by hydroxy groups at positions 3 and 8. Isolated from the centipede Scolopendra subspinipes, it exhibits cytotoxic activity against human tumour cell lines.


juglanin A

A cyclic ketone isolated from the extract of the seed husks of walnuts  Juglans regia and has been shown to exhibit cytotoxic activity against human hepatoma cells.


juglanin B

A cyclic ketone isolated from the extract of the seed husks of walnuts Juglans regia and has been shown to exhibit cytotoxic activity against human hepatoma cells.


KADLONGILACTONE A

A hexacyclic triterpenoid isolated from the leaves and stems of Kadsura longipedunculata and has been found to exhibit cytotoxicity aganist human tumour cells.


kadsuphilactone B

A pentacyclic triterpenoid isolated from Kadsura philippinensis, and has been shown to exhibit anti-HBV activity.


A glycosyloxyflavone that consists of kaempferol attached to a alpha-L-[6'''-p-coumaroyl-beta-D-glucopyranosyl-(1->2)-rhamnopyranosyl] moiety at position 3 via a glycosdic linkage. Isolated from the leaves of Ginkgo biloba, it exhibits antioxidant activity.


A kaempferol O-glucoside that consists of kaempferol attached to a alpha-L-[6'''-p-coumaroyl-beta-D-glucopyranosyl-(1->2)-rhamnopyranosyl] moiety at position 3 and a beta-D-glucopyranosyl moiety at position 7 via glycosidic linkages. Isolated from Ginkgo biloba and Mentha lavandulacea, it exhibits antioxidant activity.


A glycosyloxyflavone that consists of kaempferol attached to a 2,3-di-E-p-coumaroyl-alpha-L-rhamnopyranosyl moiety at position 7. Isolated from the flowers and fruits of  Tetrapanax papyriferus, it exhibits antineoplastic activity.