A branched amino oligosaccharide comprising two fucosyl residues, three galactose residues and two N-acetylglucosamine residues, with a glucose residue at the reducing end.


An amino-acid residue derived from hexadec-2-enoyl-pantetheine-4-phosphorylserine.


N(omega)-methyl-argininium(1+) residue

An alpha-amino-acid residue cation residue derived from N(omega)-methyl-arginine.


An amino-acid residue derived from (3R)-3-hydroxypalmitoyl-pantetheine-4-phosphorylserine.


N(6)-(dimethylallyl)adenin-9-yl group

A purinyl group derived from removal of the hydrogen attached to the nitrogen at position 9 from N(6)-(dimethylallyl)adenine.


An amino-acid residue derived from dodecanoyl-pantetheine-4-phosphorylserine.


aliphatic primary amide

A primary carboxamide in which the amide linkage is bonded directly to an aliphatic system.


L-tyrosine-O-sulfate(1-) residue

An alpha-amino-acid residue anion obtained by removal of a proton form the sulfate group of L-tyrosine-O-sulfate residue.


cyclobutadithymidine residue

A nucleotide residue derived from cyclobutadithymidine.


phosphatidylcholine 28:6

A 1,2-diacyl-sn-glycero-3-phosphocholine in which the acyl groups at C-1 and C-2 contain 28 carbons in total with 6 double bonds.


phosphatidylcholine 28:5

A 1,2-diacyl-sn-glycero-3-phosphocholine in which the acyl groups at C-1 and C-2 contain 28 carbons in total with 5 double bonds.


phosphatidylcholine 28:4

A 1,2-diacyl-sn-glycero-3-phosphocholine in which the acyl groups at C-1 and C-2 contain 28 carbons in total with 4 double bonds.


phosphatidylcholine 28:3

A 1,2-diacyl-sn-glycero-3-phosphocholine in which the acyl groups at C-1 and C-2 contain 28 carbons in total with 3 double bonds.


phosphatidylcholine 28:2

A 1,2-diacyl-sn-glycero-3-phosphocholine in which the acyl groups at C-1 and C-2 contain 28 carbons in total with 2 double bonds.


phosphatidylcholine 28:1

A 1,2-diacyl-sn-glycero-3-phosphocholine in which the acyl groups at C-1 and C-2 contain 28 carbons in total with 1 double bond.


phosphatidylcholine 28:0

A 1,2-diacyl-sn-glycero-3-phosphocholine in which the acyl groups at C-1 and C-2 contain 28 carbons in total with 0 double bonds.


N-alkylphthalic monoamide(1-)

A benzoate anion formed by deprotonation of the carboxy OH group of N-alkylphthalic monoamide. Major structure at pH 7.3.


primary ammonium ion

An ammonium ion derivative resulting from the protonation of the nitrogen atom of a primary amino compound. Major species at pH 7.3.


phosphatidylcholine 30:6

A 1,2-diacyl-sn-glycero-3-phosphocholine in which the acyl groups at C-1 and C-2 contain 30 carbons in total with 6 double bonds.


phosphatidylcholine 30:5

A 1,2-diacyl-sn-glycero-3-phosphocholine in which the acyl groups at C-1 and C-2 contain 30 carbons in total with 5 double bonds.


phosphatidylcholine 30:4

A 1,2-diacyl-sn-glycero-3-phosphocholine in which the acyl groups at C-1 and C-2 contain 30 carbons in total with 4 double bonds.


phosphatidylcholine 30:3

A 1,2-diacyl-sn-glycero-3-phosphocholine in which the acyl groups at C-1 and C-2 contain 30 carbons in total with 3 double bonds.


phosphatidylcholine 30:2

A 1,2-diacyl-sn-glycero-3-phosphocholine in which the acyl groups at C-1 and C-2 contain 30 carbons in total with 2 double bonds.


phosphatidylcholine 30:1

A 1,2-diacyl-sn-glycero-3-phosphocholine in which the acyl groups at C-1 and C-2 contain 30 carbons in total with 1 double bond.


phosphatidylcholine 30:0

A 1,2-diacyl-sn-glycero-3-phosphocholine in which the acyl groups at C-1 and C-2 contain 30 carbons in total with 0 double bonds.


A peptide anion formed by deprotonation of the terminal carboxy group of N-tetradecanoylglycylpeptide. Major species at pH 7.3.


purine deoxyribonucleotide residue

A deoxyribonucleotide residue derived from a purine deoxyribonucleotide.


pyrimidine deoxyribonucleotide residue

A deoxyribonucleotide residue derived from a pyrimidine deoxyribonucleotide.


corticorelin ovine

A corticotropin-releasing hormone from sheep composed of Ser, Gln, Glu, Pro, Pro, Ile, Ser, Leu, Asp, Leu, Val, Phe, His, Leu, Leu, Arg, Glu, Val, Leu, Glu, Met, Thr, Lys, Ala, Asp, Gln, Leu, Ala, Gln, Gln, Ala, His, Ser, Asn, Arg, Lys, Leu, Leu, Asp, Ile and Ala-NH2 residues joined in sequence.


thionitrous acid

A nitroso compound that is hydrogen sulfide in which one of the hydrogens is replaced by a nitroso group.


N(omega)-methyl-L-arginine residue

An alpha-amino-acid residue derived from N(omega)-methyl-arginine.


TRICIRIBINE

A nucleoside analogue in which the nucleobase portion is a 1,4,5,6,8-pentaazaacenaphthylene ring system substituted with an amino group at position 3, and a methyl group at position 5 and is bound to the beta-D-ribofuranosyl moiety by an N(1)-glycosidic linkage.


A polysaccharide composed of an alpha-D-glucosyl residue joined to a [(2->6)-beta-D-fructosyl]n moiety by an alpha-(1->2) linkage.


pseudouridine 5'-phosphate(1-) residue

An organic anionic group arising from the deprotonation of the phosphate OH group of pseudouridine 5'-phosphate residue.


uridine 5'-monophosphate(1-) residue

An organic anionic group derived by deprotonation of the phosphate OH group of UMP residue.


L-tyrosine-O-sulfate residue

An alpha-amino-acid residue derived from L-tyrosine-O-sulfate.


2'-deoxynucleoside 5'-monophosphate(2-)

An organophosphate oxoanion formed by deprotonation of the phosphate OH groups of any 2'-deoxynucleoside 5'-monophosphate.


cyanophycin polymer

A poly(amide) polymer composed of cyanophycin macromolecules.


loperamide

A synthetic piperidine derivative, effective against diarrhoea resulting from gastroenteritis or inflammatory bowel disease.


pseudouridine 5'-phosphate residue

A nucleotide residue derived from pseudouridine 5'-phosphate.


terpenoid indole alkaloid

An indole alkaloid which is biosynthesised from L-tryptophan and isoprenoid building blocks.


hemiterpenoid indole alkaloid

A terpenoid indole alkaloid which is biosynthesised from L-tryptophan and monoisoprenoid (usually dimethylallyl pyrophosphate or isopentenyl pyrophosphate) building blocks


monoterpenoid indole alkaloid

A terpenoid indole alkaloid which is biosynthesised from L-tryptophan and diisoprenoid (usually secolaganin) building blocks.


alvespimycin

A 19-membered macrocyle that is geldanamycin in which the methoxy group attached to the benzoquinone moiety has been replaced by a 2-(N,N-dimethylamino)ethylamino group.


pictilisib

A sulfonamide composed of indazole, morpholine, and methylsulfonyl-substituted piperazine rings bound to a thienopyrimidine ring.


D-xylose

Any xylose with D-configuration.


L-xylose

Any xylose with L-configuration.


LY 294002

A chromone substituted with a phenyl group at position 8 and a morpholine group at position 2.


A beta-amino-acid anion obtained by deprotonation of the carboxy group of (3-aminopropyl)(L-aspartyl-1-amino)phosphoryl-5'-adenosine.


alkyl caffeate ester

A cinnamate ester obtained by formal condensation of caffeic acid with any alkyl alcohol.


An organophosphate oxoanion that is the tetraanion formed from 2'-(5"-phosphoribosyl)-3'-dephospho-CoA by global deprotonation of the phosphate and diphosphate groups. Major species at pH 7.3.


An organic anionic group formed by deprotonation of the phosphate and diphospahte groups of 2'-(5''-phosphoribosyl)-3'-dephospho-CoA serine residue.


A carbohydrate acid anion obtained by deprotonation of the carboxy group of any 3-deoxy-D-manno-octulosonic acid


An acyl-CoA oxoanion that is the tetraanion formed from acetyl-2'-(5"-phosphoribosyl)-3'-dephospho-CoA by global deprotonation of the phosphate and diphosphate groups. Major species at pH 7.3.


An organic anionic group formed by deprotonation of the phosphate and diphosphate groups of acetyl-2'-(5''-phosphoribosyl)-3'-dephospho-CoA serine residue.


An adenosine 5'-phosphate derivative that has the structure of coenzyme A dephosphorylated at C-3' and with a 5''-phospho-D-ribosyl substituent at C-2'.


An amino-acid residue formed from 2'-(5''-phosphoribosyl)-3'-dephospho-CoA serine.


A dicarboxylic acid dianion obtained by deprotonation of the carboxy groups of 5-formyltetrahydrofolic acid.


An unsaturated fatty acid anion that is the conjugate base of 5-hydroxy-6E,8Z,11Z,14Z-icosatetraenoic acid, obtained by deprotonation of the carboxy group.


A long-chain fatty acid anion that is the conjugate base of 5-oxo-ETE, obtained by deprotonation of the carboxy group.


An adenosine 5'-phosphate derivative that has the structure of acetyl-coenzyme A dephosphorylated at C-3' and with a 5''-phospho-D-ribosyl substituent at C-2'.


sonolisib

An organic heterotetracyclic compound that is obtained from wortmanin via aminolysis of its furan ring by diallyl amine.


aclidinium

A carboxylic ester obtained by formal condensation between the carboxy group of 2-hydroxy(di-2-thienyl)acetic acid and the hydroxy group of N-(3-phenoxypropyl)-3-quinuclidinol. Used as its bromide salt for the long-term maintenance treatment of bronchospasm associated with chronic obstructive pulmonary disease (COPD).


carfilzomib

A synthetic tetrapeptide consisting of morpholin-4-acetyl, L-2-amino-4-phenylbutanoyl, L-leucyl and L-phenylalanyl residues joined in sequence with the C-terminus connected to the amino group of (2S)-2-amino-4-methyl-1-[(2R)-2-methyloxiran-2-yl]-1-oxopentan-1-one via an amide linkage. Used for the treatment of patients with multiple myeloma


An amino-acid residue formed from acetyl-2'-(5''-phosphoribosyl)-3'-dephospho-CoA serine.


mirabegron

A monocarboxylic acid amide obtained by formal condensation of the carboxy group of 2-amino-1,3-thiazol-4-ylacetic acid with the anilino group of (1R)-2-{[2-(4-aminophenyl)ethyl]amino}-1-phenylethanol. Used for the treatment of overactive bladder syndrome.


An organic cation that is the conjugate base of lorcaserin, obtained by protonation of the endoc yclic amino group.


achromobactin free acid

A tetracarboxylic acid obtained by protonation of the four carboxylate groups of achromobactin. A siderophore biosynthesized by prokaryotes.


lorcaserin

A benzazepine that is 2,3,4,5-tetrahydro-3-benzazepine substituted at position 1 by a methyl group and a t position 6 by a chloro group.


abacopterin A

An organic heterotetracyclic compound resulting from cyclocondensation of the 4- and 5-hydroxy groups of (2S,4S)-2-(4-methoxyphenyl)-6,8-dimethylchromane-4,5,7-triol across the 1- and 2-positions of 6-O-acetyl-1,2-didehydro-D-glucose. A natural product found in Abacopteris penangiana.


abacopterin B

An organic heterotetracyclic compound resulting from cyclocondensation of the 4- and 5-hydroxy groups of (2S,4S)-2-(4-methoxyphenyl)-6,8-dimethylchromane-4,5,7-triol across the 1- and 2-positions of 3-O-acetyl-1,2-didehydro-D-glucose. A natural product found in Abacopteris penangiana.


ABACOPTERIN C

An organic heterotetracyclic compound resulting from cyclocondensation of the 4- and 5-hydroxy groups of (2S,4S)-2-(4-methoxyphenyl)-6,8-dimethylchromane-4,5,7-triol across the 1- and 2-positions of 1,2-didehydro-D-glucose. A natural product found in Abacopteris penangiana.


abacopterin D

An organic heterotetracyclic compound that is (2R,3S,4S,4aR,8R,10S,13aS)-3,4,8-trihydroxy-2-(hydroxymethyl)-10-(4-methoxyphenyl)-12-methyl-3,4,4a,9,10,13a-hexahydro-2H,6H,8H-pyrano[3',2':2,3][1,4]dioxepino[6,5-g]chromen-7-ol substituted at position 7 by a beta-D-glucosyl group. A natural product found in Abacopteris penangiana.


abyssinone A

A chromenol that is 2,2-dimethyl-2H-chromen-8-ol substituted by a 3-(2,4-dihydroxyphenyl)-3-oxoprop-1-en-1-yl group at position 6 (the E-isomer). It is isolated from the stems of Erythrina abyssinica and displays moderate cytotoxic effect against human colorectal cancer cell line.


abyssinone C

A chromenol that is 2,2-dimethyl-3,4-dihydro-2H-chromene-3,4,8-triol substituted by a 3-(2,4-dihydroxyphenyl)-3-oxoprop-1-en-1-yl moiety at position 6 (the E-isomer). It is isolated from the stems of Erythrina abyssinica and displays moderate cytotoxic effect against human colorectal cancer cell line.


abyssinone D

A chalcone having hydroxy substituents at positions 4, 2' and 4', a methoxy substituent at position 3 and a 3-methylbut-2-en-1-yl group at position 5. It is isolated from the stems of Erythrina abyssinica and displays moderate cytotoxic effect against human colorectal cancer cell line.


A glycosyloxyflavone that is the 7-O-beta-D-galactopyranosyl derivative of acacetin. It is isolated from the flowering heads of Chrysanthemum morifolium and has been found to possess potent anti-HIV activity.


A member of the class of 2,5-diketopiperazines that is 2,5-diketopiperazine substituted by an (aminocarbonyl)methyl group at position 3 and an isobutyl group at position 6. It is isolated from the fungus Cordyceps sinensis and exhibits significant cytotoxicity against L-929, A375 and HeLa cell lines.


A sesquiterpene lactone and an organic heterotricyclic compound that is 2,3,3a,4,5,6,6a,9,9a,9b-decahydroazuleno[4,5-b]furan substituted by an acetoxy group at position 4, hydroxy groups at positions 6 and 9, methyl groups at positions 6 and 9, a methylidene group at position 3 and an oxo group at position 2. It is a guaianolide isolated from Chrysanthemum boreale and has been shown to exhibit cytotoxic activity against human cancer cell lines.


15-acetoxyorbiculin G

A dihydroagarofuran  sesquiterpenoid that is the 15-acetoxy derivative of orbiculin G. It is isolated from Microtropis japonica and exhibits antitubercular activity.


A sesquiterpene lactone that is (3aS,4R,7aR)-3a,4,7,7a-tetrahydro-1-benzofuran-2(3H)-one with a methylidene at position C-3, a hydroxy at C-4, a methyl at C-6, and a (2S)-5-(acetyloxy)pentan-2-yl group at position C-5. A natural product found in Inula britannica var chinensis and Inula japonica.


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


A diterpene alkaloid isolated from the roots of Delphinium denudatum that exhibits antifungal activity.


ACULEATOL E

An oxaspiro compound that is 1,7-dioxadispiro[5.1.5.2]pentadec-9-en-11-one substituted by hydroxy groups at positions 4 and 13 and a tridecyl group at position 2 (the (2R,4R,6S,8R,13S stereoisomer). It is isolated from the leaves of Amomum aculeatum and exhibits toxicity against some cancer cell lines like human lung carcinoma, hormone-dependent lung carcinoma and human breast carcinoma.


acumitin

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


ACUTOSIDE A

A pentacyclic triterpenoid that is oleanolic acid substituted by a 2-O-beta-D-glucopyranosyl-beta-D-glucopyranosyl moiety at position O-3.  A natural product found in Luffa acutangula and Viola hondoensis.


adxanthromycin A

An organic peroxide, which is the 3-alpha-D-galactopyranosyl substituted derivative of the dimer obtained by oxidation at the 10-hydroxy position of (10S)-3,8,10-trihydroxy-1,7,10-trimethyl-9-oxo-9,10-dihydroanthracene-2-carboxylic acid. It is isolated from the fermentation broth of Streptomyces.


adxanthromycin B

A disaccharide derivative that is adxanthromycin A in which the galactosyl moiety has an additional alpha-D-galactosyl residue attached at position 4. It is isolated from the fermentation broth of Streptomyces.


AGELADINE A

An imidazopyridine that is 1H-imidazo[4,5-c]pyridin-2-amine substituted by a 4,5-dibromo-1H-pyrrol-2-yl group at position 4. It is an alkaloid isolated from a marine sponge Agelas nakamurai and acts as an inhibitor of the matrix metalloproteinases, the key enzymes involved in tumour growth, migration, angiogenesis, invasion and metastasis.


AGLAFOLIN

A heterotricyclic compound based on a 2,3,3a,8b-tetrahydro-1H-benzo[b]cyclopenta[d]furan framework substituted by hydroxy groups at positions C-1 and C-8b, a methoxycarbonyl group at C-2, a phenyl group at C-3, a 4-methoxyphenyl group at C-3a and methoxy groups at C-6 and C-8. A platelet aggregation inhibitor found in Aglaia elliptifolia and Aglaia odorata.


agrochelin

A member of the class thiazolidines that is (3S)-3-hydroxy-2,2-dimethyl-3-[(4R)-3-methyl-1,3-thiazolidin-4-yl]propanoic acid which is substituted at position 2 by a (4R)-2-(2-hydroxy-6-pentylphenyl)-4,5-dihydro-1,3-thiazol-4-yl group. A cytotoxic antibiotic, it is produced by the fermentation of Agrobacterium.


ainsliadimer A

A sesquiterpene lactone isolated from the whole plants of Ainsliaea macrocephala; exhibits inhibitory activity against production of nitric oxide (NO).


aiphanol

A lignan that is (2R)-2,3-dihydro-1,4-benzodioxin-2-ylmethanol which is  substituted by a 2-(3,5-dihydroxyphenyl)ethenyl group at position 6 and a 4-hydroxy-3,5-dimethoxyphenyl group at position 3. It is a stilbenolignan isolated from the seeds of Aiphanes aculeata and exhibits potent inhibitory efficacy against cyclooxygenase-1 and -2 (COX-1 and COX-2).


albibrissinoside A

A disaccharide derivative isolated from the stems of Albizia julibrissin that exhibits antioxidant activity.


ALBIZOSIDE A

A triterpenoid saponin isolated from the stem bark of Albizia chinensis that exhibits cytotoxic activity against a small panel of human tumour cell lines.


loratadine

A benzocycloheptapyridine that is 6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine substituted by a chloro group at position 8 and a 1-(ethoxycarbonyl)piperidin-4-ylidene group at position 11. It is a H1-receptor antagonist commonly employed in the treatment of allergic disorders.


ALISIAQUINONE A

An organic heteropentacyclic compound comprising (2aS,5aR,8aR,8bS)-8a-hydroxy-2a,5a-dimethyldecahydro-8H-naphtho[1,8-bc]furan-8-one ortho-fused to C-6 and C-7 of 1,4-naphthoquinone. An antiplasmodial drug isolated from New Caledonian deep water sponge.


ALISIAQUINONE B

A heteropentacyclic compound that is the 9-methoxy derivative of alisiaquinone A. An antiplasmodial drug isolated from New Caledonian deep water sponge.


ALISIAQUINONE C

An organic heterohexacyclic compound that is isolated from New Caledonian deep water sponge and exhibits antiplasmodial properties.


ALISIAQUINOL

An organic heteropentacyclic compound comprising (2aS,5aR,8aR,8bS)-8a-hydroxy-2a,5a-dimethyldecahydro-8H-naphtho[1,8-bc]furan-8-one ortho-fused to C-6 and C-7 of naphthalene-1,4-diol. An antiplasmodial drug isolated from New Caledonian deep water sponge.


alismorientol A

A guaiane sesquiterpenoid that is 1,5-cis-guaiane substituted by hydroxy groups at positions 4, 6, 7 and 10. It is isolated from the rhizomes of Alisma orientale and exhibits antihepatitis B activity.


allanxanthone C

A member of the class of xanthones that is 3,6,8-trihydroxy-1H-xanthene-2,9-dione substituted by geminal prenyl groups at position 1 and a single prenyl group at position 7. It is isolated from the stem barks of Allanblackia monticola and exhibits antiplasmodial activity. It also shows weak cytotoxicity against human melanoma cells.


Aloe C-glucosylchromone

A C-glycosyl compound consisting of 2-[(2R)-2-hydroxypropyl]-7-methoxy-5-methyl-4H-chromen-4-one substituted by a beta-D-[2-O-(E)-cinnamoyl]glucopyranosyl residue at position 8 via a C-glycosidic linkage. It is isolated from the leaves of Aloe barbadensis and exhibits anti-inflammatory activity.


ALVARADOIN E

A C-glycosyl compound that is 1,8-dihydroxy-3-methylanthracen-9(10H)-one substituted by a (1-O-acetyl)-alpha-L-lyxopyranosyl moiety at position 10 via a C-glycosidic linkage (the 10S stereoisomer). It is isolated from the leaves of Alvaradoa haitiensis and exhibits cytotoxicity against human oral epidermoid carcinoma.


alvaradoin F

A C-glycosyl compound that is 1,8-dihydroxy-3-methylanthracen-9(10H)-one substituted by a (1-O-acetyl)-alpha-L-lyxopyranosyl moiety at position 10 via a C-glycosidic linkage (the 10R stereoisomer). It is isolated from the leaves of Alvaradoa haitiensis and exhibits cytotoxicity against human oral epidermoid carcinoma.


alvaradoin G

A C-glycosyl compound that is 1,8-dihydroxy-3-methylanthracen-9(10H)-one substituted by a 1-O-acetyl-3-O-senecioyl-alpha-L-lyxopyranosyl moiety at position 10 via a C-glycosidic linkage (the 10R stereoisomer). It is isolated from the leaves of Alvaradoa haitiensis and exhibits cytotoxicity against human oral epidermoid carcinoma.


ALVARADOIN H

A C-glycosyl compound that is 1,8-dihydroxy-3-methylanthracen-9(10H)-one substituted by a 1-O-acetyl-3-O-senecioyl-alpha-L-lyxopyranosyl moiety at position 10 via a C-glycosidic linkage (the 10S stereoisomer). It is isolated from the leaves of Alvaradoa haitiensis and exhibits cytotoxicity against human oral epidermoid carcinoma.


alvaradoin I

A C-glycosyl compound that is 1,8,10-trihydroxy-3-methylanthracen-9-one substituted by a 1-O-acetyl-3-O-senecioyl-alpha-L-lyxopyranosyl moiety at position 10 via a C-glycosidic linkage (the 10R stereoisomer). It is isolated from the leaves of Alvaradoa haitiensis and exhibits cytotoxicity against human oral epidermoid carcinoma.


alvaradoin J

A C-glycosyl compound that is 1,8,10-trihydroxy-3-methylanthracen-9-one substituted by a 1-O-acetyl-3-O-senecioyl-alpha-L-lyxopyranosyl moiety at position 10 via a C-glycosidic linkage (the 10S stereoisomer). It is isolated from the leaves of Alvaradoa haitiensis and exhibits cytotoxicity against human oral epidermoid carcinoma.


alvaradoin K

A C-glycosyl compound that is 1,8-dihydroxy-3-methylanthracen-9(10H)-one substituted by a 2-O-senecioyl-alpha-lyxopyranosyl moiety at position 10 via a C-glycosidic linkage  (the 10R stereoisomer). It is isolated from the leaves of Alvaradoa haitiensis and exhibits cytotoxicity against human oral epidermoid carcinoma.


alvaradoin L

A C-glycosyl compound that is 1,8-dihydroxy-3-methylanthracen-9(10H)-one substituted by a 2-O-senecioyl-alpha-lyxopyranosyl moiety at position 10 via a C-glycosidic linkage (the 10S stereoisomer). It is isolated from the leaves of Alvaradoa haitiensis and exhibits cytotoxicity against human oral epidermoid carcinoma.


alvaradoin M

A C-glycosyl compound that is 1,8-dihydroxy-3-methylanthracen-9(10H)-one substituted by a 3-O-senecioyl-alpha-L-lyxopyranosyl moiety at position 10 via a C-glycosidic linkage (the 10S stereoisomer). It is isolated from the leaves of Alvaradoa haitiensis and exhibits cytotoxicity against human oral epidermoid carcinoma.


alvaradoin N

A C-glycosyl compound that is 1,8,10-trihydroxy-3-methylanthracen-9(10H)-one substituted by a 1-O-acetyl-alpha-L-lyxopyranosyl moiety at position 10 via a C-glycosidic linkage (the 10S stereoisomer). It is isolated from the leaves of Alvaradoa haitiensis and exhibits cytotoxicity against human oral epidermoid carcinoma.


ambiguine H

An ambiguine which is a (6aS,9R,10R,10aS)-9-ethenyl-10-isocyano-6,6,9-trimethyl-1-(2-methylbut-3-en-2-yl) substituted derivative of 2,6,6a,7,8,9,10,10a-octahydronaphtho[1,2,3-cd]indole. An antimicrobial agent isolated from the cyanobacterium strain, Fischerella.


ambiguine I

An ambiguine that consists of a 5,5,7,10,10-pentamethyl-4,5,5a,6a,6b,7,8,9,9a,10-decahydro-10dH-6-oxa-4-azacyclopropa[6,7]cyclohepta[1,2,3,4-mno]aceanthrylen-10d-ol skeleton with an ethenyl substituent at position 7 and an isocyano group at position 6b (the 5aS,6aR,6bR,7R,9aR,10dR stereoisomer). An antimicrobial agent isolated from the cyanobacterium strain Fischerella.


amburoside A

A beta-D-glucoside in which a beta-D-glucopyranosyl residue is attached at position 4 of 4-hydroxybenzyl 3,4-dihydroxybenzoate via a glycosidic linkage. It is isolated from the trunk barks of Amburana cearensis and exhibits antimalarial, neuroprotective, hepatoprotective and antioxidant activities.


amomol A

An oxaspiro compound that is 1-oxaspiro[4.5]deca-6,9-dien-8-one substituted by a  (2R)-2-hydroxyheptadecyl moiety and a methoxy group at position 2. It is isolated from the leaves of Amomum aculeatum and exhibits anticancerous efficacy against human lung carcinoma, hormone-dependent human prostate carcinoma and human breast carcinoma.


amomol B

An oxaspiro compound that is 1-oxaspiro[4.5]deca-6,9-dien-8-one substituted by a (2R)-2-hydroxyheptadecyl moiety and a methoxy group at position 2. A natural product found in Amomum aculeatum.


ANCISTROTANZANINE A

An isoquinoline alkaloid that is (3S)-6,8-dimethoxy-1,3-dimethyl-3,4-dihydroisoquinoline substituted by a 1-hydroxy-8-methoxy-3-methylnaphthalen-2-yl group at position 5. It is isolated from the leaves of Ancistrocladus tanzaniensis and exhibits antiplasmodial, antileishmanial and antitrypanocidal activities.


ANCISTROEALAINE A

An isoquinoline alkaloid that is (3S)-6,8-dimethoxy-1,3-dimethyl-3,4-dihydroisoquinoline substituted by a 4,5-dimethoxy-7-methylnaphthalen-1-yl group at position 5. It is isolated from the leaves of Ancistrocladus tanzaniensis and exhibits antiplasmodial, antileishmanial and antitrypanocidal activities.


andrographolide

A labdane diterpenoid isolated from the leaves and roots of Andrographis paniculata that exhibits anti-HIV, anti-inflammatory and antineoplastic properties.


ANNOMONTINE

An alkaloid that is beta-carboline substituted at position C-1 by a 2-aminopyrimidin-4-yl moiety. An antiparasitic agent found in Annona montana and Annona foteida.


losartan

A biphenylyltetrazole where a 1,1'-biphenyl group is attached at the 5-position and has an additional trisubstituted imidazol-1-ylmethyl group at the 4'-position


ANOLIGNAN A

A lignan that consists of buta-1,3-diene substituted by a 2,4-dihydroxybenzyl group at position 2 and a 1,3-benzodioxol-5-ylmethyl group at position 3. It is isolated from the ground stems of Anogeissus acuminata and exhibits anti-HIV activity by inhibiting HIV-1 reverse transcriptase enzyme.


ANOLIGNAN B

A lignan that consists of buta-1,3-diene substituted by 4-hydroxybenzyl groups at positions 2 and 3. It is isolated from the ground stems of Anogeissus acuminata and exhibits anti-HIV activity by inhibiting HIV-1 reverse transcriptase enzyme.


ansaetherone

An eleven-membered macrocyclic lactam that consists of (2S,3E,5Z,14S,15R)-5-ethylidene-11,14-dihydroxy-3,7,15-trimethyl-2,5-dihydro-2,13-ethano-1,9-benzoxazacycloundecine-6,8-dione in which the 14-hydroxy group is substituted by a (2R,5R,6R)-5-hydroxy-6-methyltetrahydro-2H-pyran-2-yl moiety. It is a radical scavenger isolated from Streptomyces.


antimycin A9

A benzamide obtained by formal condensation of the carboxy group of 3-formamido-2-hydroxybenzoic acid with the amino group of 3-amino-8-butyl-2,6-dimethyl-4,9-dioxo-1,5-dioxonan-7-yl phenylacetate. It is a microbial metabolite isolated from Streptomyces.


ANTROCAMPHIN A

A methoxybenzene that is 1,2,5-trimethoxy-3-methylbenzene substituted by a 3-methylbut-3-en-1-yn-1-yl group at position 4. It is isolated from Antrodia camphorata and exhibits anti-inflammatory activity.


ANTROQUINONOL

An enone that is cyclohex-2-en-1-one substituted by a hydroxy group at position 4, methoxy groups at positions 2 and 3, a methyl group at position 6 and a (2E,6E)-3,7,11-trimethyldodeca-2,6,10-trien-1-yl group at position 5 (the 4R,5R,6R stereoisomer). It is isolated from the solid-state fermented mycelium of the fungus Antrodia camphorata and has been found to exhibit potent cytotoxicity against a number of human cancer cell lines. However, a synthesis-enabled biological re-examination published in 2016, revealed minimal in vitro and in vivo antitumour activity in preclinical models.


aplysiallene

A furofuran that is hexahydrofuro[3,2-b]furan which is substituted at position 2 by a (1E,3E)-4-bromohexa-1,3-dien-1-yl  group and at position 5 by a (1R)-3-bromopropadienyl group (the 2R,3aS,5R,6aS diastereoisomer). A natural product first isolated from the red alga Laurencia okamurai Yamada and subsequently found in the sea hare Aplysia kurodai, aplysiallene is an inhibitor of sodium-potassium adenosine triphosphatase.


(+)-aplysinillin

An alklaoid obtained from the marine sponge Aplysinella.


APLYSINOPLIDE A

A sesterterpenoid isolated from the marine sponge Aplysinopsis digitata that exhibits cytotoxicity against P388 mouse leukemia cells.


APRATOXIN D

An aprotoxin having the common aprotoxin cyclodepsipeptide skeleton where the isoleucyl residue carries an N-methyl substituent and the side-chain adjacent to the lactone is (2R)-4,4-dimethylpentan-2-yl. It is isolateed from Lyngbya majuscula and Lyngbya sordida and exhibits anticancer properties.


apratoxin E

An aprotoxin having the common aprotoxin cyclodepsipeptide skeleton with a double bond in the polyketide unit. It is isolated from Lyngbya bouillonii and exhibits cytotoxic activity against several cancer cell lines derived from colon, cervix, and bone.


ARDIMERIN DIGALLATE

A C-glycosyl compound isolated from the whole plants of Ardisia japonica. It is a dimeric lactone that exhibits inhibitory activity against HIV-1 RNAse H.


A triterpenoid saponin that is composed of primulagenin A having a alpha-L-rhamnopyranosyl-(1->2)-beta-D-glucopyranosyl-(1->4)-[beta-D-glucopyranosyl-(1->2)]-alpha-L-arabinopyranosyl moiety attached to position 3 by a glycosidic linkage. It is isolated from the whole plants of Ardisia pusilla and exhibits cytotoxic activity against human gliboblastoma U251MG cells.


ARDISIANOSIDES A

A triterpenoid saponin that is composed of (3beta,16alpha)-13,28-epoxyoleanane-3,16-diol having a  beta-D-Glcp-(1->2)-{beta-D-Xylp-(1->2)-{beta-D-Glcp-(1->3)-[beta-D-Glcp-(1->4)]-beta-D-Glcp-(1->3)}-beta-D-Glcp-(1->4)}-alpha-L-Arap moiety attached to position 3 by a glycosidic linkage. It is isolated from whole plants of Ardisia japonica and exhibits significant cytotoxicity against a panel of human cancer cell lines.


ARDISIANOSIDE B

A triterpenoid saponin that is composed of (3beta,16alpha)-13,28-epoxyoleanane-3,16-diol having a beta-D-Glcp-(1->2)-{beta-D-Xylp-(1->2)-[beta-D-Glcp-(1->3)-beta-D-Glcp-(1->3)]-beta-D-Glcp-(1->4)}-alpha-L-Arap moiety attached to position 3 by a glycosidic linkage. It is isolated from the whole plants of Ardisia japonica and exhibits significant cytotoxicity against a panel of human cancer cell lines.


ARDISIANOSIDE C

A triterpenoid saponin that is composed of (3beta,16alpha)-13,28-epoxyoleanane-3,16-diol having a alpha-L-Rhap-(1->2)-beta-D-Glcp-(1->4)-alpha-L-Arap moiety attached at position 3 by a glycosidic linkage. It is isolated from the whole plants of Ardisia japonica and exhibits significant cytotoxicity against a panel of human cancer cell lines.


ARDISIANOSIDE D

A triterpenoid saponin that is composed of (3beta,16alpha)-13,28-epoxyoleanane-3,16-diol having a beta-D-Xylp-(1->2)-beta-D-Glcp-(1->4)-alpha-L-Arap moiety attached to position 3 by a glycosidic linkage. It is isolated from the whole plants of Ardisia japonica and exhibits significant cytotoxicity against a panel of human cancer cell lines.


ARDISIANOSIDE E

A triterpenoid saponin that is (3beta,16alphaalpha)-13,28-epoxyoleanane-3,16,30-triol with a beta-D-Glcp-(1->2)-[beta-D-Glcp-(1->4)]-alpha-L-Arap moiety attached to position 3 by a glycosidic linkage. It is isolated from Ardisia japonica and exhibits anticancer properties.


lotisoflavan

A hydroxyisoflavan that is isoflavan substituted by hydroxy groups at positions 2' and 4' and methoxy groups at positions 5 and 7 respectively.


ardisiphenol A

An acetate ester obtained from the formal condensation of acetic acid with the hydroxy group at position 1 of 6-pentadecylbenzene-1,2,4-triol. Isolated from the dried fruits of Ardisia colorata, it exhibits scavenging activity towards DPPH radicals and cytotoxicity against murine breast cancer cell line, FM3A.


ardisiphenol B

An acetate ester obtained from the formal condensation of  acetic acid with the hydroxy group at position 1 of 6-[(8Z)-pentadec-8-en-1-yl]benzene-1,2,4-triol. Isolated from the dried fruits of Ardisia colorata, it exhibits scavenging activity towards DPPH radicals and cytotoxicity against murine breast cancer cell line, FM3A.


ardisiphenol C

An acetate ester obtained from the formal condensation of acetic acid with the hydroxy group at position 1 of 6-[(8Z,11Z)-heptadeca-8,11-dien-1-yl]benzene-1,2,4-triol. Isolated from the dried fruits of Ardisia colorata, it exhibits scavenging activity towards DPPH radicals and cytotoxicity against murine breast cancer cell line, FM3A.


ARENAMIDE A

A 19-membered cyclodepsipeptide consisting of a 3-hydroxy-4-methyldecanoyl moiety linked to the peptide sequence of 5 amino acids. Isolated from the fermentation broth of marine actinomycete Salinispora arenicola, it has been found to block tumour necrosis factor (TNF)-induced activation of NFkappaB-Luc human embryonic kidney cells.


ARENAMIDE B

A 19-membered cyclodepsipeptide that is isolated from the fermentation broth of marine actinomycete Salinispora arenicola; it has been found to block tumour necrosis factor (TNF)-induced activation of NFkappaB-Luc human embryonic kidney cells.


arisugacin A

An organic heterotetracyclic compound that is 4a,12a-dihydroxy-4,4,6a,12b-tetramethyl-4a,6,6a,12,12a,12b-hexahydro-4H,11H-benzo[f]pyrano[4,3-b]chromene-1,11(5H)-dione substituted by 3,4-dimethoxyphenyl group at position 9 (the 4aR,6aR,12aS,12bS steroisomer). Isolated from the culture broth of Penicillium, it acts as a selective inhibitor of acetylcholinesterase.


arisugacin B

An organic heterotetracyclic compound that is 4a,12a-dihydroxy-4,4,6a,12b-tetramethyl-4a,6,6a,12,12a,12b-hexahydro-4H,11H-benzo[f]pyrano[4,3-b]chromene-1,11(5H)-dione substituted by a 4-methoxyphenyl group at position 9 (the 4aR,6aR,12aS,12bS steroisomer). Isolated from the culture broth of Penicillium, it acts as a selective inhibitor of acetylcholinesterase.


arisugacin C

An organic heterotetracyclic compound that is 4,4,6a,12b-tetramethyl-1,4a,5,6,6a,12,12a,12b-octahydro-2H,11H-benzo[f]pyrano[4,3-b]chromene-3,11(4H)-dione substituted at position 4a by a hydroxy and and at position 9 by 4-methoxyphenyl group (the 4aS,6aR,12aR,12bR stereoisomer). Isolated from the culture broth of Penicillium, it acts as a selective inhibitor of acetylcholinesterase.


arisugacin D

An organic heterotetracyclic compound that is 4,4,6a,12b-tetramethyl-11-oxo-1,3,4,4a,5,6,6a,12,12a,12b-decahydro-2H,11H-benzo[f]pyrano[4,3-b]chromen-3-yl acetate substituted by hydroxy groups at positions 4a and 12a and by a 4-methoxyphenyl group at position 9 (the 3R,4aR,6aR,12aS,12bS steroisomer). Isolated from the culture broth of Penicillium, it acts as a selective inhibitor of acetylcholinesterase.


ARTOCARPIN

A trihydroxyflavone that is flavone substituted by hydroxy groups at positions 5, 2', and 4', a methoxy group at position 7, a prenyl group at position 3 and a (1E)-3-methylbut-1-enyl group at position 6. Isolated from Artocarpus heterophyllus and Artocarpus integrifolia, it exhibits antineoplastic activity.


ARTOCHAMIN C

An extended flavonoid that is 4H,8H-pyrano[2,3-f]chromen-4-one substituted by a 3,4-dihydroxyphenyl group at position 2, hydroxy group at position 5 and geminal methyl groups at position 8. It is isolated from the roots of Artocarpus chama and exhibits cytotoxicity against a panel of human tumour cell lines like breast adenocarcinoma, ovarian carcinoma, ileocecal carcinoma and melanoma.


artoindonesianin E1

An extended flavonoid that is 6,7-dihydro-8H-chromeno[3,2-d][1]benzoxepin-8-one substituted by hydroxy groups at positions 3 and 9, a methoxy group at position 11, a (1E)-3-methylbut-1-en-1-yl group at position 10 and a prop-1-en-2-yl at position 6. It is isolated from the woods of Artocarpus elasticus and shows moderate cytotoxicity against murine leukemia P-388 cells.


artoindonesianin P

An extended flavonoid that is 5a,6-dihydro-5H,7H-[1]benzofuro[3,4-bc]xanthen-7-one substituted by hydroxy groups at positions 1, 3, 8 and 10 and geminal methyl groups at position 5. It is isolated from the tree barks of Artocarpus lanceifolius and exhibits cytotoxicity against human murine leukemia cells.


PENICILLIDE

A dibenzodioxocine that is 5H,7H-dibenzo[b,g][1,5]dioxocin-5-one substituted by a hydroxy group at position 11, a (1S)-1-hydroxy-3-methylbutyl group at position 3 and a methoxy and a methyl group at positions 4 and 9 respectively. It is isolated from the culture broth of Penicillium asperosporum and acts as an acyl-CoA:cholesterol acyltransferase inhibitor.


A dibenzodioxocine that is the 1'-O-acetyl derivative of penicillide. It is isolated from Penicillium purpurogenum and acts as an acyl-CoA:cholesterol acyltransferase inhibitor.


A dibenzodioxonine isolated from the culture broth of Penicillium asperosporum that acts as an acyl-CoA:cholesterol acyltransferase inhibitor.


A dibenzodioxonine isolated from the culture broth of Penicillium asperosporum that acts as an acyl-CoA:cholesterol acyltransferase inhibitor. It is one of the 8 possible diastereomers of AS-186c. However the exact stereochemistry of the compound is unknown.


ACIDIATHIAZONE A

An organic heterotricyclic compound,  that is 3,4-dihydro-2H-[1,4]thiazino[2,3-g]quinoline-5,10 dione S,S-dioxide substituted at position 7 by a carboxyl group. It is an anti-inflmmatory alkaloid obtained from Aplidium.


ASCIDIATHIAZONE B

An organic heterotricyclic compound, that is 5,10-dioxo-5,10-dihydro-1H-[1,4]thiazino[3,2-g]quinoline 4,4-dioxide substituted at position 7 by a carboxy group. It is an anti-inflmmatory alkaloid obtained from Aplidium.


aspergillide A

A macrolide that is 4,15-dioxabicyclo[9.3.1]pentadec-9-en-3-one substituted by a hydroxy group at position 14 and a methyl group at position 5 (the 1R,5S,9E,11R,14S stereoisomer). It is isolated from the marine-derived fungus Aspergillus ostianus and exhibits cytotoxic activity against mouse lymphocytic leukemia cells (L1210).


aspergillide B

A macrolide that is 4,15-dioxabicyclo[9.3.1]pentadec-9-en-3-one substituted by a hydroxy group at position 14 and a methyl group at position 5 (the 1S,5S,9E,11R,14S stereoisomer). It is isolated from the marine-derived fungus Aspergillus ostianus and exhibits cytotoxic activity against mouse lymphocytic leukemia cells (L1210).


aspergillide C

A macrolide that is 4,15-dioxabicyclo[9.3.1]pentadeca-9,12-dien-3-one substituted by a hydroxy group at position 14 and a methyl group at position 5 (the 1S,5S,9E,11R,14S stereoisomer). It is isolated from the marine-derived fungus Aspergillus ostianus and exhibits cytotoxic activity against mouse lymphocytic leukemia cells (L1210).


ASPHODELIN A

A hydroxycoumarin that is 4,7-dihydroxy-2H-chromen-2-one substituted by a 2,4-dihydroxyphenyl group at position 3. It is isolated from the roots of Asphodelus microcarpus and exhibits antimicrobial activity against bacteria like Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa and fungal microorganisms like Candida albicans and Botrytis cinerea.


asphodelin A-4'-O-beta-glucoside

A beta-D-glucoside in which a beta-D-glucopyranosyl residue is attached at position 4' of asphodelin A via a glycosidic linkage. It is isolated from the roots of Asphodelus microcarpus and exhibits antimicrobial activity against bacteria like Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa and fungal microorganisms like Candida albicans and Botrytis cinerea.


asprellic acid A

A pentacyclic triterpenoid  that is the diester obtained by the global condensation of the hydroxy groups of (3beta)-3,27-dihydroxyolean-12-en-28-oic acid with trans-4-coumaric acid. It is isolated from the dried leaves of Ilex asprella and exhibits significant toxicity against KB (epidermoid carcinoma of the nasopharynx) and RPMI-7951 (melanoma) cell lines.


asprellic acid C

A pentacyclic triterpenoid that is the diester obtained by the global condensation of the hydroxy groups of (3beta)-3,27-dihydroxyolean-12-en-28-oic acid with trans-4-coumaric acid and cis-4-coumaric acid respectively. It is isolated from the dried leaves of Ilex asprella and exhibits significant toxicity against KB (epidermoid carcinoma of the nasopharynx) and RPMI-7951 (melanoma) cell lines.


astragaloside IV

A pentacyclic triterpenoid that is cycloastragenol having  beta-D-xylopyranosyl and beta-D-glucopyranosyl residues attached at positions O-3 and O-6 respectively. It is isolated from Astragalus membranaceus var mongholicus.


aureoquinone

A naphthoquinone that is 1,4-naphthoquinone substituted by hydroxy groups at positions 2, 5, 7,and 8 and methyl groups at positions 3 and 6. It is isolated from surface cultures of Aureobasidium and acts as a protease inhibitor.


AUSTRALIFUNGIN

A carbobicyclic compound that is 4a,5,6,7,8,8a-hexahydronaphthalen-1(4H)-one substituted by hydroxy groups at positions 2, 5 and 8, a (2Z)-3-hydroxyprop-2-enoyl group at position 4, methyl groups at positions 4 and 7 and a 2R-octan-2-yl group at position 3 (the 4S,4aR,5S,7R,8R,8aS stereoisomer). It is isolated from the fermentation extracts of Sporormiella australis and exhibits antifungal activity by interfering with the fungal lipid metabolism.


AVICULARIN

A quercetin O-glycoside in which an alpha-L-arabinofuranosyl residue is attached at position 3 of quercetin via a glycosidic linkage. It is isolated particularly from Juglans regia and Foeniculum vulgare.


azoxybacilin

A non-proteinogenic alpha-amino acid that is (2S)-2-aminobutanoic acid substituted by a (Z)-methyl-NNO-azoxy moiety at position 4. It is an antibiotic isolated from the culture broth of Bacillus cereus and exhibits antifungal activity.


ballotenic acid

A diterpenoid that is 3,4,4a,5,6,7,8,8a-octahydronaphthalene-1-carboxylic acid substituted by methyl groups at positions 5, 6 and 8a and a 2-(2-oxotetrahydrofuran-3-yl)ethyl group at position 5 (the 4aR,5S,6R,8aR stereoisomer). It is isolated from the whole plant of Ballota limbata (Syn.Otostegia limbata) and acts as a lipoxygenase inhibitor.


ballodiolic acid

A diterpenoid that is 3,4,4a,5,6,7,8,8a-octahydronaphthalene-1-carboxylic acid substituted by methyl groups at positions 5, 6 and 8a and a 5-hydroxy-3-(hydroxymethyl)pentyl group at position 5 (the 4aR,5S,6R,8aR stereoisomer). It is isolated from the whole plant of Ballota limbata (Syn.Otostegia limbata) and acts as a lipoxygenase inhibitor.


bassiatin

A member of the class of morpholines that is morpholine-2,5-dione substituted by a benzyl, isopropyl and a methyl group at positions 3, 6 and 4 respectively. It is isolated from the culture broth of the fungus Beauveria bassiana and acts as a platelet aggregation inhibitor.


BATZELLADINE A

A carboxylic ester obtained by the formal condensation of (2aS,3S,4R,7R,8aS)-4-methyl-7-nonyl-2,2a,3,4,6,7,8,8a-octahydro-1H-5,6,8b-triazaacenaphthylene-3-carboxylic acid with the hydroxy group of 4-carbamimidamidobutyl (3R)-3-(9-hydroxynonyl)-1-imino-1,2,3,5,6,7-hexahydropyrrolo[1,2-c]pyrimidine-4-carboxylate. Isolated from a bright red Caribbean sponge, Batzella, it has potential anti-HIV activity.


batzelladine B

A carboxylic ester obtained by the formal condensation of (2aR,7R,8aS)-7-heptyl-4-methyl-2,2a,6,7,8,8a-hexahydro-1H-5,6,8b-triazaacenaphthylene-3-carboxylic acid with the hydroxy group of 4-carbamimidamidobutyl 3-(9-hydroxynonyl)-1-imino-1,2,3,5,6,7-hexahydropyrrolo[1,2-c]pyrimidine-4-carboxylate. Isolated from a bright red Caribbean sponge, Batzella, it has potential anti-HIV activity.


bauhinoxepin A

An organic heterotetracyclic compound that is 3H-chromeno[6,5-b][1]benzoxepine substituted by geminal methyl groups at position 3, a single methyl group at position 5 and hydroxy groups at positions 6 and 11. It is isolated from the roots of Bauhinia saccocalyx and exhibits antimycobacterial activity.


bauhinoxepin B

A dibenzooxepine that is dibenzo[b,f]oxepine substituted by a methoxy group at position 6, a methyl group at position 7, a prenyl group at position 2 and hydroxy groups at positions 1 and 8 respectively. It is isolated from the roots of Bauhinia saccocalyx and exhibits antimycobacterial activity.


BAUHINOXEPIN F

A dibenzooxepine that is  10,11-dihydrodibenzo[b,f]oxepine substituted by methoxy groups at positions 6 and 9, methyl group at position 7 and hydroxy groups at positions 1 and 8 respectively. It is isolated from the root extract of Bauhinia purpurea and exhibits antimalarial, antimycobacterial, antifungal, anti-inflammatory and cytotoxic activities.


BAUHINOXEPIN I

A dibenzooxepine that is 10,11-dihydrodibenzo[b,f]oxepine-1,4-dione substituted by a hydroxy, a methoxy and a methyl group at positions 8, 2 and 3 respectively. It is isolated from the root extract of Bauhinia purpurea and exhibits antimalarial, antimycobacterial, antifungal, anti-inflammatory and cytotoxic activities.


BAUHINOXEPIN J

A dibenzooxepine that is 10,11-dihydrodibenzo[b,f]oxepine-1,4-dione substituted by a methoxy group at position 2. It is isolated from the root extract of Bauhinia purpurea and exhibits antimalarial, antimycobacterial, antifungal and cytotoxic activities.


A butenolide that is furan-2(3H)-one substituted by a 3,4-dihydroxybenzylidene group at position 3 and a 3,4-dihydroxyphenyl group at position 5 (the 3E stereoisomer). It is isolated from the fermentation broth of the fungal strain Rhizoctonia solani F23372 and has been found to possess significant tyrosine kinase inhibitory potential. It also inhibits the growth of A431 human epidermoid carcinoma and MKN-7 human stomach cancer cell lines.


An organic heterohexacyclic compound that is 6,7,9,16-tetrahydro-14H-6,16-epoxyanthra[2,3-e]benzo[b]oxocin-14-one substituted by hydroxy groups at positions 3, 11, 13 and 15, methyl groups at positions 1 and 4 and geminal methyl groups at position 9 respectively. It is isolated from the fermentation broth of Streptomyces violaceusniger and exhibits moderate antibacterial activity.


An organic heteropentacyclic compound that is isolated from Streptomyces sp. A54238. It exhibits inhibitory efficacy against the growth of human tumour cells.


An organic heterohexacyclic compound that is isolated from Streptomyces sp. A54238. It exhibits inhibitory efficacy against the growth of human tumour cells.


SWERTIANOLIN

A xanthone that is bellidifolin in which a beta-Dglucopyranosyl residue is attached at position O-8 via a glycosidic linkage. It is isolated particularly from Gentiana campestris and Gentiana germanica.


tetrahydroswertianolin

A xanthone glycoside that is the 1,2,3,4-tetrahydro derivaive of swertianolin (the S,4R-stereoisomer). It is isolated from Swertia japonica and shows hepatoprotective properties.


DEMETHYLBELLIDIFOLIN

A member of the class of xanthones that is xanthone which is substituted by hydroxy groups at positions 1, 3, 5, and 8. A natural product found particularly in Iris nigricans and Gentiana campestris.


BENTHOPHOENIN

A member of the class of phenazines that is 5,10-dihydrophenazine-1-carboxylic acid substituted by benzoyl groups at positions 3 and 7 and a geranyl moiety at position 5. It is isolated from the mycelium of Streptomyces prunicolor and acts as a free radical scavenger.


benzastatin C

A quinoline alkaloid that is 1,2,3,4-tetrahydroquinoline-6-carboxamide substituted by a chloro group at position 3 and a 3,4-dimethylpent-3-en-1-yl and a methoxymethyl group at position 2 (the 2R,3R stereoisomer). Isolated from the culture broth of Streptomyces nitrosporeus 30643, it exhibits inhibitory potential against lipid peroxidation and anti-HSV activity.


BEVIRIMAT

A pentacyclic triterpenoid obtained by the formal condensation of 2,2-dimethylsuccinic acid with the 3-hydroxy group of betulinic acid. It is isolated from the Chinese herb Syzygium claviflorum. The first in the class of HIV-1 maturation inhibitors to be studied in humans, bevirimat was identified as a potent HIV drug candidate and several clinical trials were conducted, but development into a new drug was plagued by numerous resistance-related problems.


dihydrobetulinic acid

A pentacyclic triterpenoid that is lupane having a 3beta-hydroxy and 28-carboxy substituents. Isolated from the leaves of Syzygium claviflorum, it exhibits anti-HIV and antileishmanial activity.


betulin di(3-carboxybutanoate)

A pentacyclic triterpenoid that is betulin acylated at positions O-3 and O-28 by 3-carboxybutanoyl groups. It is isolated from Syzygium claviflorum.


PLATANIC ACID

A pentacyclic triterpenoid that is 30-norlupan-28-oic acid substituted by a 3beta-hydroxy and an oxo group at position 20. It is isolated from the leaves of Syzygium claviflorum and exhibits anti-HIV activity.


BF 4

An organic heterotetracyclic compound that is 2,3,10,12-tetrahydro-4H,11H-pyrano[2,3-a]xanthene-4,11-dione substituted by methyl groups at positions 6, 8, 10, and 10, and by hydroxy, isopropyl, methoxy, phenyl, and  groups at positions 5, 12, 9, and 2, respectively (the S,S-enantiomer). It is isolated from the leaves of Baeckea frutescens and exhibits cytotoxicity against leukemia cells.


BF 5

An organic heterotetracyclic compound that is 2,3,10,12-tetrahydro-4H,11H-pyrano[2,3-a]xanthene-4,11-dione substituted by methyl groups at positions 6, 8, 10, and 10, and by hydroxy, isopropyl, methoxy, phenyl, and groups at positions 5, 12, 9, and 2, respectively (the S,R-enantiomer). It is isolated from the leaves of Baeckea frutescens and exhibits cytotoxicity against leukemia cells.


BF 6

An organic heterotetracyclic compound that is 8,12-dihydro-2H,9H-pyrano[2,3-a]xanthene-4,9,11(3H,10H)-trione substituted by methyl groups at positions 6, 8, 8, 10 and 10 and phenyl groups at positions 2 and 12 respectively (the S-enantiomer). It is isolated from the leaves of Baeckea frutescens and exhibits cytotoxicity against leukemia cells.


BIDEBILINE C

An isoquinoline alkaloid that is a dimer of 8-methoxydehydroanonaine. Isolated from the roots of Polyalthia debilis, it exhibits moderate antimalarial activity by inhibiting the growth of the malarial parasite Plasmodium falciparum.


BIDEBILINE D

An isoquinoline alkaloid that is a dimer of 10-methoxydehydroanonaine. Isolated from the roots of Polyalthia debilis, it exhibits moderate antimalarial activity by inhibiting the growth of the malarial parasite Plasmodium falciparum.


bidenlignaside A

A neolignan isolated from the whole plant of Bidens parviflora that has been found to inhibit histamine release from the peritoneal exudate mast cells induced by antigen-antibody reaction.


A phlorotanin that is 1,1'-bioxanthrene substituted by 3,5-dihydroxyphenoxy groups at position 6 and 6' and hydroxy groups at positions  2, 2', 4, 4', 7, 7', 9 and 9' respectively. It is isolated  from an edible marine brown alga Ecklonia cava and exhibits antioxidant activity.


bielschowskysin

A diterpenoid that is isolated from Pseudopterogorgia kallos and exhibits antimalarial and anticancer activity.


BIPINNATONE A

A member of the class of dihydrochalones that is dihydrochalcone hydroxylated at C-2', C-4', C-6' and C-4 and substituted by a farnesyl group at C-3. It is isolated from the aerial parts of Boronia bipinnata and exhibits antimalarial activity.


BIPINNATONE B

A member of the class of dihydrochalones that is dihydrochalcone hydroxylated at C-2', C-4', C-6' and C-4 and substituted by a geranyl group at C-3. It is isolated from the aerial parts of Boronia bipinnata and exhibits antimalarial activity.


LAVOLTIDINE

A triazole that consists of 1,2,4-triazole bearing a methyl substituent at position 1, a hydroxymethyl substituent at position 3 and a {3-[3-(piperidin-1-ylmethyl)phenoxy]propyl}amino group at position 5. A highly potent and selective H2-receptor antagonist.


An organic sulfide that consists of two 4-hydroxybenzyl groups covalently bound to a central sulfur atom. It is isolated from Gastrodia elata and Pleuropterus ciliinervis and exhibits neoroprotective activity.


An ether in which the oxygen atom is linked to two 4-hydroxybenzyl groups. It is isolated from the tubers of Gastrodia elata and acts as a platelet aggregation inhibitor.


A  diarylheptanoid that is 1,4,6-heptatrien-3-one substituted by 4-hydroxypheny group at positions 1 and 7 respectively. It has been isolated from the rhizomes of Curcuma domestica and Etlingera elatior.


An enone that consists of 7-oxohepta-1,3,5-triene-1,7-diyl moiety substituted by a 4-hydroxyphenyl substituent at C-1 and at C-7. It is isolated from the rhizomes of Etlingera elatior and has been found to inhibit lipid peroxidation.


BISTRATAMIDE E

A homodetic cyclic peptide that consists of L-threonine and L-valine as the amino acid residues cyclised via amide bonds. It is isolated from  Lissoclinum bistratum and exhibits antitumour activity against the human colon tumour cell line.


BISTRATAMIDE F

A homodetic cyclic peptide that consists of L-threonine and L-valine and L-serine as the amino acid residues cyclised via amide bonds. It is isolated from Lissoclinum bistratum and exhibits antitumour activity against the human colon tumour cell line


BISTRATAMIDE G

A homodetic cyclic peptide that consists of L-valine as the amino acid residue. It is isolated from Lissoclinum bistratum and exhibits antitumour activity against the human colon tumour cell line.


BISTRATAMIDE I

A homodetic cyclic peptide that consists of L-valine and L-threonine as the amino acid residues. It is isolated from Lissoclinum bistratum and exhibits antitumour activity against the human colon tumour cell line.


blancoxanthone

A member of the class of pyranoxanthones that is  2H,6H-pyrano[3,2-b]xanthen-6-one substituted by hydroxy groups at positions 5 and 10, geminal methyl groups at position 2 and a 2-methylbut-3-en-2-yl group at position 12. It is isolated from the roots of Calophyllum blancoi and exhibits antiviral activity against coronavirus.


BRARTEMICIN

A glycosyl glycoside derivative that consists of alpha,alpha-trehalose substituted at positions 6 and 6' by O-2,4-dihydroxy-6-methylbenzoyl groups. It is isolated from the culture broth of actinomycete, Nonomuraea, and has antitumor activity.


brasilicardin A

A diterpenoid antibiotic isolated from the culture broth of Nocardia brasiliensis IFM0406. It exhibits antitumour  and strong immunosuppressive activity.


brasilinolide A

A 32-membered macrolide antibiotic isolated from the fermentation broth of Nocardia brasiliensis. It exhibits antifungal and immunosuppressive activity.


brasilinolide B

A 32-membered macrolide antibiotic isolated from the fermentation broth of Nocardia brasiliensis. It exhibits antifungal activity.


brasiliquinone A

A carbopolycyclic compound that is (3S)-3-ethyl-6,8-dihydroxy-3,4-dihydrotetraphene-1,7,12(2H)-trione substituted at position 8 by a 3-amino-2,3,6-trideoxy-alpha-L-ribo-hexopyranosyl group. It is isolated from the culture broth of Nocardia brasiliensis and exhibits antibacterial activity against Gram-positive bacteria. It is also active against the multiple drug-resistant P388/ADR tumour cells.


brasiliquinone B

A carbopolycyclic compound that is 3,4-dihydrotetraphene-1,7,12(2H)-trione substituted by hydroxy groups at positions 6 and 8 and an ethyl group at position 3 (the S stereoisomer). It is isolated from the culture broth of Nocardia brasiliensis and exhibits antibacterial activity against Gram-positive bacteria. It is also active against the multiple drug-resistant P388/ADR tumour cells.


brasixanthone B

A member of the class of pyranoxanthones that is 2H,6H-pyrano[3,2-b]xanthen-6-one substituted by hydroxy, geminal methyl and a prenyl group at positions 5, 8, 2 and 12 respectively. It is isolated from the stem bark of Calophyllum brasiliense and exhibits significant inhibitory activity against 12-O-tetradecanoylphorbol-13-acetate induced Epstein-Barr virus early antigen activation in Raji cells.


brasixanthone C

A member of the class of pyranoxanthones that is 2H,6H-pyrano[3,2-b]xanthen-6-one substituted by a 2-hydroperoxy-3-methylbut-3-en-1-yl moiety at position 12, hydroxy groups at positions 5 and 8 and geminal methyl groups at position 2. It is isolated from the stem bark of Calophyllum brasiliense and exhibits significant inhibitory activity against 12-O-tetradecanoylphorbol-13-acetate induced Epstein-Barr virus early antigen activation in Raji cells.


brasixanthone D

A member of the class of pyranoxanthones that is 2H,6H-pyrano[3,2-b]xanthen-6-one substituted by a 2-[(2S)-3,3-dimethyloxiran-2-yl]-2-hydroxyethyl group at position 12, hydroxy groups at positions 5 and 8 and geminal methyl groups at position 2. It is isolated from the stem bark of Calophyllum brasiliense and exhibits significant inhibitory activity against 12-O-tetradecanoylphorbol-13-acetate induced Epstein-Barr virus early antigen activation in Raji cells.


BREVIPOLIDE A

A pyranone that is a carboxylic ester of trans-4-coumaric acid. It is isolated from the whole plant of Hyptis brevipes and has been found to exhibit cytotoxicity against HT-29 cancer cells.


BREVIPOLIDE B

A pyranone that is a carboxylic ester of cis-4-coumaric acid. It is isolated from the whole plant of Hyptis brevipes and has been found to exhibit cytotoxicity against HT-29 and MCF-7 cancer cells.


A member of the class of beta-carboline that is 9H-beta-carboline substituted by bromo, methoxy and a methyl group at positions 5, 8 and 1 respectively. It is isolated from a marine bryozoan Pterocella vesiculosa and has been found to exhibit moderate antitumour activity against the P388 murine leukemia cell line. Additionally it shows antimicrobial activity towards the Gram-positive bacterium Bacillus subtilis and the fungi Candida albicans and Trichophyton mentagrophytes.


bromophycolide A

A diterpenoid that is a macrolide isolated from the Fijian red alga Callophycus serratus. It has been found to exhibit moderate cytotoxicity against several human tumour cell lines via specific apotopic cell death. It also displays anti-HIV, antibacterial, antifungal and antimalarial activity.


bruceanol D

A quassinoid natural product found in Brucea antidysenterica consisting of a heteropentacyclic skeleton containing a delta-lactone moiety which is substituted at the alpha-carbon by a (2E)-3,4-dimethylpent-2-enoyloxy group. It shows significant in vitro cytotoxicity towards several human tumour cell lines.


bruceanol E

A quassinoid that is the dihydro derivative of bruceanol D. Isolated from Brucea antidysenterica, it exhibits in vitro cytotoxicity towards several human tumour cell lines.


bruceanol F

A quassinoid isolated from Brucea antidysenterica and has been shown to exhibit in vitro cytotoxicity towards several human tumour cell lines.


BRUCEOLIDE

A  quassinoid isolated from Brucea javanica and Brucea sumatrana and has been shown to exhibit antimalarial activity.


A C-glycosyl compound that is luteolin substituted by beta-D-glucopyranosyl moieties at positions 6 and 8 respectively.


A  quassinoid that is the 15-O-acetyl derivative of bruceolide. It has been isolated from Brucea javanica and Brucea sumatrana.


A quassinoid that is the 15-O-propionyl derivative of bruceolide. It has been isolated from  Brucea javanica and Brucea sumatrana.


A  quassinoid that is the 3,15-di-O-acetyl derivative of bruceolide. It has been isolated from  Brucea javanica and Brucea sumatrana.


A quassinoid that is the 3,15-di-O-propionyl derivative of bruceolide. It has been isolated from  Brucea javanica and Brucea sumatrana.


A steroid saponin that consists of (3beta,22R)-22-methoxyfurostan-3,26-diol attached to a beta-D-glucopyranosyl residue at position 26 and a beta-D-glucopyranosyl-(1->2)-[beta-D-xylopyranosyl-(1->3)]-beta-D-glucopyranosyl-(1->4)-beta-D-glucopyranosyl residue at position 3 via a glycosidic linkage. Isolated from Brunfelsia grandiflora, it exhibits antileishmanial activity.


name: 3-(3-methylbut-2-enyl)-4-(3-methylbut-2-enyloxy)quinolin-2(1H)-one (Structural isomer of Buchapine)


An isochromane that is 3,4-dihydroisocoumarin with a butyl substituent at position 7, hydroxy substituents at positions 6 and 8 and a 3E-pent-3-en-1-yl group at position 3. It is isolated from an endophytic fungus, Geotrichum.


cadiyenol

An acetylenic compound that is (8E)-heptadeca-1,8-diene-4,6-diyne substituted by hydroxy group at positions 6 and 15, a methoxy group at position 8 and a (5-methoxy-5-oxopentyl)oxy group at position 7. Isolated from Centella asiatica, it exhibits antineoplastic activity.


CAESALPININ C

A tetracyclic diterpenoid isolated from the seed kernels of Caesalpinia crista that has been found to exhibit antimalarial activity.


CAESALPININ D

A diterpenoid lactone isolated from the seed kernels of Caesalpinia crista that has been found to exhibit antimalarial activity.


3-O-ACETYLNORCAESALPININ A

A diterpenoid isolated from the seed kernels of Caesalpinia crista that has been found to exhibit antimalarial activity.


A sesquiterpenoid that is 1,2,3,3a,4,5,8,8a-octahydroazulene substituted by hydroxy groups, isopropyl and methyl groups at positions 1, 2, 1, 3a and 6 respectively. It is isolated from the culture broth of Gliocladium virens and exhibits antifungal activity.


2-O-caffeoyl maslinic acid

A pentacyclic triterpenoid that is the 2-O-caffeoyl derivative of maslinic acid. It is isolated from the branch barks of Hippophae rhamnoides and acts as a radical scavenger.


caffeoylglycolic acid methyl ester

A cinnamate ester obtained by the condensation of trans-caffeic acid with methyl hydroxyacetate. It is isolated from the leaves of Parthenocissus tricuspidata and exhibits antioxidant activity.


A pentacyclic triterpenoid that is the cinnamate ester obtained by the formal condensation of the carboxylic group of cis-caffeic acid with the hydroxy group of lupeol (the 3beta stereoisomer). It is isolated from the fruits of Bruguiera parviflora and exhibits antimalarial activity.


CALABRICOSIDE A

A quercetin O-glucoside in which a alpha-L-rhamnopyranosyl-(1->2)-alpha-L-arabinopyranosyl and a beta-D-glucopyranosyl residue is attached respectively via a glycosidic linkage at positions 3 and 7 of quercetin. It is isolated from the aerial parts of  Putoria calabrica and exhibits radical scavenging activity.


CALABRICOSIDE B

A quercetin O-glucoside in which a 4''-O-caffeoyl-alpha-L-rhamnopyranosyl-(1->2)-alpha-L-arabinopyranosyl and a beta-D-glucopyranosyl moiety is attached respectively via a glycosidic linkage to positions 3 and 7 of quercetin. It is isolated from the aerial parts of Putoria calabrica and exhibits radical scavenging activity.


(+)-CALANOLIDE A

An organic heterotetracyclic compound that is 11,12-dihydro-2H,6H,10H-dipyrano[2,3-f:2',3'-h]chromen-2-one substituted by a hydroxy group at position 12, methyl groups at positions 6, 6, 10 and 11 and a propyl group at position 4 (the 10R,11S,12S stereoisomer). Isolated from Calophyllum lanigerum var austrocoriaceum and Calophyllum brasiliense, it exhibits potent activity against HIV-1 reverse transcriptase.


COSTATOLIDE

An organic heterotetracyclic compound that is 11,12-dihydro-2H,6H,10H-dipyrano[2,3-f:2',3'-h]chromen-2-one substituted by a hydroxy group at position 12, methyl groups at positions 6, 6, 10 and 11 and a propyl group at position 4 (the 10S,11R,12S stereoisomer). Isolated from Calophyllum lanigerum var austrocoriaceum and Calophyllum brasiliense, it exhibits potent activity against HIV-1 reverse transcriptase.


callipeltin A

A 10-membered cyclodepsipeptide containing four amino acids in the L- configuration, Ala, Leu, Thr (2 residues); one (Arg) in the  D-configuration; two N-methyl amino acids, N-MeAla and N-MeGln; a methoxy tyrosine, a 3, 4-dimethyl-L-glutamine, and a 4-amino-7-guanidino-2,3 dihydroxypentanoic acid (AGDHE), formally derived from L-Arg. It is obtained from the shallow water sponge Callipelta and has been found to show activity against HIV virus.


callophycoic acid A

A dibenzooxepine diterpenoid that is hexahydrodibenzo[b,e]oxepine with an isolated double bond between positions 6a and 7 and is substituted by a bromo, a carboxy, a 3E-4,8-dimethylnona-3,7-dien-1-yl and a methyl group  at positions 9, 2, 10 and 10 respectively (the 9S,10S,10aR stereoisomer). It is isolated from the Fijian red alga Callophycus serratus and exhibits antibacterial, antimalarial and anticancer activities.


callophycoic acid B

A dibenzooxepine diterpenoid that is hexahydrodibenzo[b,e]oxepine with an isolated double bond between positions 6 and 6a and is substituted by a bromo, a carboxy, a 3E-4,8-dimethylnona-3,7-dien-1-yl and a methyl group at positions 9, 2, 10 and 10 respectively (the 9S,10S,10aR stereoisomer). An isomer of callophycoic acid A, it is isolated from the Fijian red alga Callophycus serratus and exhibits antibacterial, antimalarial and anticancer activities.


callophycoic acid C

A dibenzooxepine diterpenoid that is hexahydrodibenzo[b,e]oxepine-2-carboxylic acid with an isolated double bond between positions 6a and 7 and is substituted by a bromo, 2-[(1S,3S,6S)-3-bromo-6-hydroxy-2,2,6-trimethylcyclohexyl]ethyl and a methyl group at positions 9, 10 and 10 respectively (the 9S,10S,10aR stereoisomer). It is isolated from the Fijian red alga Callophycus serratus and exhibits antibacterial, antimalarial and anticancer activities.


callophycoic acid D

A dibenzooxepine diterpenoid that is hexahydrodibenzo[b,e]oxepine-2-carboxylic acid with an isolated double bond between positions 6 and 6a and is substituted by a bromo, 2-[(1S,3S,6S)-3-bromo-6-hydroxy-2,2,6-trimethylcyclohexyl]ethyl and a methyl group at positions 9, 10 and 10 respectively (the 9S,10S,10aR stereoisomer). An isomer of callophycoic acid C, it is isolated from the Fijian red alga Callophycus serratus and exhibits antibacterial, antimalarial and anticancer activities.


callophycoic acid E

A dibenzooxepine diterpenoid that is hexahydrodibenzo[b,e]oxepine-2-carboxylic acid with an isolated double bond between positions 6 and 6a and is substituted by a bromo, a 2-[(1R,3S)-3-bromo-2,2-dimethyl-6-methylidenecyclohexyl]ethyl and a methyl group at positions 9, 10 and 10 respectively (the 9S,10S,10aR stereoisomer). It is isolated from the Fijian red alga Callophycus serratus and exhibits antibacterial, antimalarial and anticancer activities.


callophycoic acid F

An organic heterobicyclic compound that is 2,5-dihydro-1-benzoxepine-7-carboxylic acid substituted by a (3E,7E)-4,8,12-trimethyltrideca-3,7,11-trien-1-yl group at position 3. It is isolated from the Fijian red alga Callophycus serratus and exhibits antibacterial, antimalarial and anticancer activities.


callophycoic acid G

A monohydroxybenzoic acid that is 4-hydroxybenzoic acid substituted at position 3 by a decahydronaphthalen-1-ylmethyl group which in turn is substituted by a bromo, two methyl groups, a methylidene and a 4-methylpent-3-en-1-yl group at positions 6, 5, 8a, 2 and 5 respectively. A diterpenoid isolated from the Fijian red alga Callophycus serratus, it exhibits antibacterial, antimalarial and anticancer activities.


callophycoic acid H

A monohydroxybenzoic acid that is 3-bromo-4-hydroxybenzoic acid substituted at position 5 by a decahydronaphthalen-1-ylmethyl group which in turn is substituted by a bromo, two methyl groups, a methylidene and a 4-methylpent-3-en-1-yl group at positions 6, 5, 8a, 2 and 5 respectively. A diterpenoid isolated from the Fijian red alga Callophycus serratus, it exhibits antibacterial, antimalarial and anticancer activities.


callophycol A

A dibromophenol that is 2,4-dibromophenol substituted at position 6 by a decahydronaphthalen-1-ylmethyl group which in turn is substituted by a bromo, 3-bromo-4-chloro-4-methylpentyl group, two methyl groups and a methylidene group at positions 6, 5, 5, 8a and 2 respectively. A diterpenoid isolated from the Fijian red alga Callophycus serratus, it exhibits antibacterial, antimalarial and anticancer activities.


callophycol B

A dibromophenol that is 2,4-dibromophenol substituted at position 6 by a decahydronaphthalen-1-ylmethyl group which in turn is substituted by a bromo, 4-bromo-3-chloro-4-methylpentyl group, two methyl groups and a methylidene group at positions 6, 5, 5, 8a and 2 respectively. A diterpenoid isolated from the Fijian red alga Callophycus serratus, it exhibits antibacterial, antimalarial and anticancer activities.


calotropone

A 20-oxo steroid that is 17alpha-pregn-5-en-20-one substituted by a benzoyloxy group at position 12 and hydroxy groups at positions 3, 14 and 17 (the 3beta,12beta,14beta stereoisomer). It is isolated from the roots of Calotropis gigantea and displays inhibitory effects towards chronic myelogenous leukemia K562 and human gastric cancer SGC-7901 cell lines.


camellianoside

A quercetin O-glucoside consisting of quercetin having a beta-D-xylopyranosyl-(1->3)-6-deoxy-alpha-L-mannopyranosyl-(1->6)-beta-D-glucopyranosyl residue at position 3. It is isolated from the leaves of Camellia japonica and exhibits antioxidant activity.


CAMINOSIDES A

A glycolipid with an unusual non-glycerol aglycone, 10-hydroxynonadecan-2-one that is glycosylated at the C10 hydroxy group by a branched tetrasaccharide residue. It is isolated from the marine sponge Caminus sphaeroconia and exhibits potent activity as an inhibitor of a type III bacterial secretory system.


candelalide A

A diterpenoid isolated from Sesquicillium candelabrum and has been shown to act as a blocker of the voltage-gated potassium channel Kv1.3.


capilliposide B

A triterpenoid saponin that consists of anagalligenin A substituted by a caproyl group at position 22 and a beta-D-xylopyranosyl-(1->2)-beta-D-glucopyranosyl-(1->4)-[beta-D-glucopyranosyl-(1->2)]-alpha-L-arabinopyranosyl moiety at position 3 via a glycosidic linkage. It is isolated from the whole plants of Lysimachia capillipes and has been shown to exhibit potent cytotoxicity against human A-2780 cells.


CARDIVIN A

A  germacranolide isolated from the aerial parts of Carpesium divaricatum. It exhibits cytotoxicity against the human tumor cells, A-549 (nonsmall cell lung), SK-OV-3 (ovary), SK-MEL-2 (skin), XF-498 (central nervous system) and HCT-15 (colon).


CARDIVIN B

A germacranolide isolated from the aerial parts of Carpesium divaricatum. It exhibits cytotoxicity against the human tumor cells, A-549 (nonsmall cell lung), SK-OV-3 (ovary), SK-MEL-2 (skin), XF-498 (central nervous system) and HCT-15 (colon).


caribenol A

A terpene lactone that is 3,4,5,5a,6,7,7a,10,10a,10b-decahydro-2H-1-oxabenzo[cd]cyclopenta[h]azulen-2-one substituted by a hydroxy group at position 10b and methyl groups at positions 3, 6, 9 and 10a. It is isolated from the West Indian gorgonian octocoral Pseudopterogorgia elisabethae and exhibits antitubercular and antimalarial activity.


caribenol B

A cyclic terpene ketone that is 2a,3,4,5,5a,6,7,8-octahydroacenaphthylen-1(2H)-one substituted by hydroxy groups at positions 2 and 2a, methyl groups at positions 2, 5 and 8 and a 2-methylprop-1-en-1-yl group at position 3. It is isolated from the the West Indian gorgonian octocoral Pseudopterogorgia elisabethae and exhibits antitubercular and antimalarial activity.


DRAGOMABIN

A lipopeptide consisting of a 2-methyloct-7-ynoyl moiety attached to a linear tetrapeptide comprising of N-methyl-L-phenylalanyl, L-alanyl, N-methyl-L-alanyl and Nalpha,O-dimethyl-L-tyrosine units. It is isolated from a Panamanian strain of the marine cyanobacterium Lyngbya majuscula and displays antimalarial activity.


DRAGONAMIDE A

A lipopeptide consisting of a 2-methyloct-7-ynoyl moiety attached to a linear tetrapeptide comprising of N-methyl-L-phenylalanyl and N-methyl-L-valine units. It is isolated from a Panamanian strain of the marine cyanobacterium Lyngbya majuscula and displays antimalarial activity.


CARNOSIC ACID

An abietane diterpenoid that is abieta-8,11,13-triene substituted by hydroxy groups at positions 11 and 12 and a carboxy group at position 20. It is isolated from rosemary (Rosmarinus officinalis) and common sage (Salvia officinalis) and exhibits anti-angiogenic, antineoplastic, antioxidant and anti-HIV activity.


caseamemebrol A

A diterpenoid of the clerodane group isolated from the leaves and twigs of Casearia membranacea. It exhibits significant cytotoxicity against human prostrate (PC-3) cancer cells.


CASEANIGRESCEN A

A diterpenoid of the clerodane group isolated from the leaves and flowers of Casearia nigrescens. It exhibits cytotoxicity against A2780 human ovarian cancer cell line.


lucumin

A disaccharide derivative that is 6-O-beta-D-xylopyranosyl-beta-D-glucopyranose having an (R)-mandelonitrile group at the anomeric position.


CASEARGREWIIN A

A diterpenoid of the clerodane group isolated from the bark of Casearia grewiifolia and has been shown to exhibit antimalarial and antimycobacterial activity.


CASSIARIN A

An isoquinoline alkaloid that is pyrano[2,3,4-ij]isoquinoline substituted by a hydroxy group at position 8 and methyl groups at positions 2 and 5. It is isolated from the leaves of Cassia siamea and exhibits antiplasmodial activity against Plasmodium falciparum.


CASSIARIN B

An isoquinoline alkaloid that is pyrano[2,3,4-ij]isoquinolin-8(4H)-one substituted by methyl groups at positions 2 and 5 and a 4-methoxy-4-oxobutyl  group at position 4. It is isolated from the leaves of Cassia siamea and exhibits antiplasmodial activity against Plasmodium falciparum.


cassiaside C2

An organic heterotricyclic compound that is 9,10-dihydroxy-7-methoxy-3-methyl-1H-benzo[g]isochromen-1-one attached to a tetrasaccharide residue at position 9 via a glycosidic linkage. Isolated from Cassia obtusifolia, it exhibits anti-allergic activity.


cathestatin A

A  dicarboxylic acid monoamide obtained by the formal condensation of the carboxylic group of oxirane-2,3-dicarboxylic acid with the amino group of N-(4-aminobutyl)-L-phenylalaninamide (the 2S,3S stereoisomer). An antibiotic isolated from the fermentation broth of Penicillium citrinum, it acts as a potent inhibitor of cysteine protease.


cathestatin B

A carboxamide obtained by the formal condensation of the carboxylic group of oxirane-2,3-dicarboxylic acid with the amino group of N-(4-aminobutyl)-L-tyrosinamide (the 2S,3S stereoisomer). An antibiotic isolated from the fermentation broth of Penicillium citrinum, it acts as a potent inhibitor of cysteine protease.


CATIGUANIN A

An organic heterotetracyclic compound that is 3,4-dihydro-2H,12H-pyrano[2,3-a]xanthene substituted by a 3,4-dihydroxyphenyl group at position 2, hydroxy groups at positions 3, 5, 9 and 10 and a 2-methoxy-2-oxoethyl group at position 12 (the 2R,3R,12R stereoisomer). It is isolated from the  barks of Trichilia catigua and exhibits antioxidant activity.


CATIGUANIN B

An organic heterotetracyclic compound that is 3,4-dihydro-2H,12H-pyrano[2,3-a]xanthene substituted by a 3,4-dihydroxyphenyl group at position 2, hydroxy groups at positions 3, 5, 9 and 10 and a 2-methoxy-2-oxoethyl group at position 12 (the 2R,3R,12S stereoisomer). It is isolated from the barks of Trichilia catigua and exhibits antioxidant activity.


A steroid glycoside that is 3,8,12,14,17-pentahydroxypregn-5-en-20-one esterified at position 12 by (2E)-3,4-dimethylpent-2-enoic acid and glycosylated at the 3beta-hydroxy group by beta-cymaropyranose (the 3beta,12beta,14beta,17alpha stereoisomer). It is isolated from the roots of Cynanchum auriculatum and displays antineoplastic activity.


caulophine

A member of the class of fluoren-9-ones that is 9H-fluoren-9-one substituted by 2-(dimethylamino)ethyl group at position 3, hydroxy groups at positions 4 and 5 and two methoxy groups at positions 1 and 6 respectively. It is isolated from the radix of Caulophyllum robustum and exhibits anti-myocardial ischemia activity.


celasdin B

A pentacyclic triterpenoid that is friedelin substituted by hydroxy groups at positions 16 and 28. It is isolated from the stems of Celastrus hindsii and exhibits anti-HIV activity.


celebixanthone

A member of the class of xanthones that is 9H-xanthen-9-one substituted by hydroxy groups at positions 3, 4 and 8, a methoxy group at position 2 and a prenyl group at position 1. Isolated from Cratoxylum celebicum and the roots of Cratoxylum cochinchinense, it exhibits cytotoxic and antimalarial activities.


A member of the class of xanthones that is 9H-xanthen-9-one substituted by hydroxy groups at positions 3 and 8, methoxy groups at position 2 and 4 and a prenyl group at position 1. A methyl ether derivative of celebixanthone, it is isolated from the roots of Cratoxylum cochinchinense and exhibits antimalarial activities.


CERATAMINE A

An organic heterobicyclic compound, which is imidazo[4,5-d]azepin-5(6H)-one substituted by a 3,5-dibromo-4-methoxybenzyl group at position 4, a methyl group at position 6 and a methylamino group at position 2. It is an antimitotic alkaloid isolated from the marine sponge Pseudoceratina.


ceratamine B

An organic heterobicyclic compound, which is imidazo[4,5-d]azepin-5(6H)-one substituted by a 3,5-dibromo-4-methoxybenzyl group at position 4 and a methylamino group at position 2. It is an antimitotic alkaloid isolated from the marine sponge Pseudoceratina.


chaetominine

An organic heterotetracyclic compound that consists of 4,5,5a,9c-tetrahydro-3H-2a,9b-diazacyclopenta[jk]fluorene-1,3(2H)-dione substituted by a hydroxy group at position 5, a methyl group at position 2 and a 4-oxoquinazolin-3(4H)-yl group at position 4 (the 2S,4R,5aS,9cS stereoisomer). It is a cytotoxic alkaloid isolated from the endophytic fungus Chaetomium.


CHAETOXANTHONE A

A bridged organic heteropentacyclic compund that is 3,4,5,6-tetrahydro-2H,8H-2,6-epoxyoxocino[3,2-b]xanthen-8-one substituted by hydroxy groups at positions 4 and 7, a methoxy group at position 9 and a methyl group at position 2 (the 2S,4R,6S stereoisomer).  It is isolated from the marine derived fungus Chaetomium and has antiprotozoal activity.


CHAETOXANTHONE B

A bridged organic heteropentacyclic compound that is 3,4,5,6-tetrahydro-2H,8H-2,6-epoxyoxocino[3,2-b]xanthen-8-one substituted by a hydroxy group at position 7, a methoxy group at position 9 and a methyl group at position 2.  It is isolated from the marine derived fungus Chaetomium and has antiprotozoal activity.


CHAETOXANTHONE C

A member of the class xanthones that is 9H-xanthen-9-one substituted by a chloro group at position 4, hydroxy groups at positions 1 and 3, a methoxy group at position 8 and a (2R,6R)-6-methyltetrahydropyran-2-yl group at position 2. It is isolated from the marine derived fungus Chaetomium and has antiprotozoal activity.


chamaejasmenin A

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


chamaejasmenin D

A biflavonoid that consists of 5-hydroxy-7,4'-dimethoxyflavanone attached to 5,7,4'-trihydroxyflavanone at position C-3. Isolated from Stellera chamaejasme, it exhibits antimitotic and antifungal activity.


An oxazinane alkaloid that is methyl (4S)-1,3-oxazinane-4-carboxylate substituted by a (1H-pyrrol-2-yl group at position 2 and a 2-methylheptyl group at position 5. Isolated from Celastrus angulatus, it exhibits cytotoxic activity.


CHLOROPEPTIN

A heterodetic cyclic peptide consisting of N-acylated trytophan, 3,5-dichloro-4-hydroxyphenylglycine, 4-hydroxyphenylglycine, 3,5-dichloro-4-hydroxyphenylglycyl, tyrosine and 4-hydroxyphenylglycine residues joined in sequence and in which the side-chain of the central 4-hydroxyphenylglycine residue is attached to the side-chain of the tryptophan via a C3-C7 bond and to the side-chain of the tyrosine via an ether bond from C5. It is isolated from the culture broth of Streptomyces and has anti-HIV-1 activity.


A steroid saponin that is 3,16,17-trihydroxycholest-5-en-22-one attached to a beta-D-glucopyranosyl residue at position 3 and a 2-O-acetyl-3-O-[2-O-(3,4,5-trimethoxybenzoyl)-beta-D-xylopyranosyl]-alpha-L-arabinopyranosyl residue at position 16 via a glycosidic linkage. Isolated from Ornithogalum thyrsoides, it exhibits antineoplastic activity.


A steroid saponin that is 3,16,17-trihydroxycholest-5-en-22-one attached to a beta-D-glucopyranosyl residue at position 3 and a 2-O-acetyl-3-O-[2-O-(3,4-dimethoxybenzoyl)-beta-D-xylopyranosyl]-alpha-L-arabinopyranosyl residue at position 16 via a glycosidic linkage. Isolated from Ornithogalum thyrsoides and Galtonia candicans, it exhibits antineoplastic activity.


A steroid saponin that is 3,16,17-trihydroxycholest-5-en-22-one attached to a beta-D-glucopyranosyl residue at position 3 and a 2-O-acetyl-3-O-(beta-D-xylopyranosyl)-alpha-L-arabinopyranosyl residue at position 16 via a glycosidic linkage. Isolated from Ornithogalum thyrsoides and Galtonia candicans, it exhibits cytotoxic activity.


A steroid saponin isolated from Ornithogalum thyrsoides and has been shown to exhibit antineoplastic activity.


A steroid saponin isolated from Ornithogalum thyrsoides and has been shown to exhibit cytotoxic activity.


A steroid saponin that is (3beta,16beta,20R)-3,16,17-trihydroxycholest-5-en-22-one attached to a alpha-L-arabinopyranosyl residue at position 16 and a beta-D-glucopyranosyl residue at position 3 via a glycosidic linkage. Isolated from Ornithogalum thyrsoides and Galtonia candicans, it exhibits cytotoxic activity.


A steroid saponin isolated from Ornithogalum saundersiae and Galtonia candicans and has been shown to exhibit cytotoxic activity.


ciliatamide A

A lipopeptide that contains N-methylphenylalanine and lysine as the amino acid residues linked to a dec-9-enoyl moiety via an amide linkage (the R,R stereoisomer). It is isolated from the deep sea sponge Aaptos ciliata and exhibits antileishmanial activity.


ciliatamide B

A lipopeptide that contains N-methylphenylalanine and lysine as the amino acid residues linked to a octanoyl moiety via an amide linkage (the R,R stereoisomer). It is isolated from the deep sea sponge Aaptos ciliata and exhibits antileishmanial and moderate cytotoxicity towards HeLa cells.


cimifoetiside A

A triterpene glycoside that consists of cimigenol attached to a beta-D-glucopyranosyl-(1->3)-beta-D-xylopyranosyl moiety at position 3 via a beta-glycosidic linkage (the 23R,24S stereoisomer). It is isolated from the aerial parts of  Cimicifuga foetida and exhibits significant immunosuppressive effect.


cimifoetiside B

A triterpene glycoside that consists of cimigenol attached to a beta-D-glucopyranosyl-(1->2)-beta-D-xylopyranosyl moiety at position 3 via a beta-glycosidic linkage (the 23R,24S stereoisomer). It is isolated from the aerial parts of Cimicifuga foetida and exhibits significant immunosuppressive effect.


circumdatin H

An organic heteropentacyclic compound that is 5b,7,8,16-tetrahydro-6H,10H-pyrrolo[2,1-c]quinazolino[3,2-a][1,4]benzodiazepine substituted by a methoxy group at position 2 and oxo groups at positions 10 and 16 (the 5bS stereoisomer). An alkaloid isolated from the culture broth of Aspergillus ochraceus, it exhibits potent inhibitory activity towards mitochondrial NADH oxidase.


citrafungin A

A carboxylic ester obtained by the formal condensation of 4-carboxy group of (2R)-2-hydroxy-2-{(3R,5R)-2-oxo-5-[(1E,5Z)-tetradeca-1,5-dien-1-yl]tetrahydrofuran-3-yl}butanedioic acid with the hydroxy group of 3-carboxy-2,3-dideoxy-L-threo-pentaric acid. It is a fungal metabolite that acts as an inhibitor of geranylgeranyltransferase type I(GGTase I) of pathogenic fungal species.


citrafungin B

A carboxylic ester obtained by the formal condensation of the 4-carboxy group of (2R)-2-hydroxy-2-{(3R,5R)-2-oxo-5-[(1E,5Z,8Z)-tetradeca-1,5,8-trien-1-yl]tetrahydrofuran-3-yl}butanedioic acid with the hydroxy group of 3-carboxy-2,3-dideoxy-L-threo-pentaric acid. It is a fungal metabolite that acts as an inhibitor of geranylgeranyltransferase type I(GGTase I) of pathogenic fungal species.


citrifolinoside

An unusual iridoid monoterpenoid isolated from the leaves of Morinda citrifolia. It exhibits significant inhibition of UVB-induced Activator Protein-1 (AP-1) activity in cell cultures.


A sesquiterpenoid that is 4,4a,7,8,8a,9-hexahydronaphtho[2,3-b]furan  substituted by methyl groups at positions 3, 5 and 8a and an oxo group at position 9 (the 4aS,8aS stereoisomer). It is isolated from the methanol extract of the whole plant of Chloranthus japonicus and acts as a chitin synthase inhibitor. CJ-01 also shows antifungal activity against various human and phytophathogenic fungi.


cladoniamide G

An organic heteropentacyclic compound that is 7,12-dihydro-6H-pyrido[1,2-a:3,4-b']diindole substituted by chloro groups at positions 2 and 9, a hydroxy group at position 7, a methoxy group at position 13, a N-methyl carbamyl group at position 7 and an oxo group at position 6 (the 7R stereoisomer). It is isolated from the culture broth of Streptomyces uncialis and exhibits cytotoxicity against human breast cancer MCF- cells.


8'-epi-cleomiscosin A

An organic heterotricyclic compound that is 2,3-dihydro-9H-[1,4]dioxino[2,3-h]chromen-9-one substituted by 4-hydroxy-3-methoxy phenyl group at position 3, a hydroxymethyl group at position 2 and a methoxy group at position 5 (the 2S,3R stereoisomer). An epimer of cleomiscosin A, it is isolated from the aerial parts of Rhododendron collettianum and exhibits inhibitory activity towards the enzyme tyrosinase.


clionastatin A

An androstanoid  that is androsta-3,5,8,16-tetraene substituted by chloro groups at positions 1, 12 and 19 and oxo groups at positions 7 and 15 (the 1beta,2alpha stereoisomer). It is isolated from burrowing sponge Cliona nigricans and exhibits cytotoxic efficacy.


clionastatin B

An androstanoid that is androsta-3,5,8,16-tetraene substituted by chloro groups at positions 1, 2, 16 and 19 and oxo groups at positions 7 and 15 (the 1beta,2alpha stereoisomer). It is isolated from burrowing sponge Cliona nigricans and exhibits cytotoxic efficacy.


COCHINCHINONE A

A member of the class of xanthones that is 9H-xanthen-9-one substituted by hydroxy groups at positions 1, 3 and 7, a prenyl group at position 2 and a geranyl group at position 4. Isolated from Cratoxylum cochinchinense, it exhibits cytotoxic and antioxidant activities.


COCHINCHINONE B

A member of the class of xanthones that is 9H-xanthen-9-one substituted by hydroxy groups at positions 1, 3, 6 and 7, a prenyl group at position 2 and a geranyl group at position 5. Isolated from Cratoxylum cochinchinense, it exhibits antioxidant activity.


cochinchinone C

A polycyclic cage that is a prenylated-caged xanthone isolated from Cratoxylum cochinchinense and has been shown to exhibit antimalarial and antioxidant activities.


COLOSSOLACTONE V

A tricyclic triterpenoid that is 3,4-secolanosta-8,24-diene-3,26-dioic acid 3-methylester substituted by acetoxy groups at positions 19 and 22 and a hydroxy group at position 4. It is isolated from the fruiting bodies of the Vietnamese mushroom Ganoderma colossum and displays inhibitory activity towards the enzyme HIV protease.


colossolactone VII

A tricyclic triterpenoid that is 3,4-seco-lanosta-8,24-diene-26,22-olide 3-methylester substituted by an acetoxy group at position 19 and a hydroxy group at position 4. It is isolated from the fruiting bodies of the Vietnamese mushroom Ganoderma colossum and displays inhibitory activity towards the enzyme HIV protease.


COLOSSOLACTONE VIII

A tetracyclic triterpenoid that is A,B-dihomo-19-nor-4-oxalanosta-1,8,19,24-tetraen-26,22-olide substituted by an acetoxy group at position 15, a hydroxy group at position 23 and an oxo group at position 3 (the 22S, 23R stereoisomer). It is isolated from the fruiting bodies of the Vietnamese mushroom Ganoderma colossum and displays inhibitory activity towards the enzyme HIV protease.


colpol

An organobromine compound that is 2-bromobenzene-1,3-diol substituted at position 5 by a (2Z)-4-(4-bromo-2-hydroxy-5-methoxyphenyl)but-2-en-1-yl group. It is isolated from the Red Sea alga Colpomenia sinuosa and exhibits cytotoxicity towards P388, A549, HT-29 and CV-1 tumor cells.


conferol A

A member of the class of isoflavans that is isoflavan with hydroxy substituents at positions 4, 7 and 4' and a methoxy group at position 2 (the 3R,4S stereoisomer). It is isolated from Caragana conferta and exhibits significant anti-inflammatory activity in the respiratory burst assay.


conferol B

A member of the class of isoflavans that is isoflavan with a hydroxy group at position 4, a methyl group at position 7 and a methoxy group at position 2'   (the 3R,4S stereoisomer). It is isolated from Caragana conferta and exhibits significant anti-inflammatory activity in the respiratory burst assay.


COMPLESTATINS A

A heterodetic cyclic peptide that is chloropeptin II in which the indole moiety is oxidised to the corresponding 2-oxindole. It is a HIV-1 integrase inhibitor isolated from Streptomyces.


COMPLESTATIN B

A heterodetic cyclic peptide that is chloropeptin II in which the indole moiety is oxidised to the corresponding 3-hydroxy-2-oxindole. It is a HIV-1 integrase inhibitor isolated from Streptomyces.


convallasaponin A

A steroid saponin that consists of (1beta,3beta,5beta,25S)-spirostan-1,3,17-triol attached to a beta-D-glucopyranosyl-(1->2)-[beta-D-xylopyranosyl-(1->3)]-6-deoxy-beta-D-glucopyranosyl moiety at position 1 via a glycosidic linkage. It is isolated from the rhizomes of Convallaria majalis and exhibits significant cytotoxicity against human submandibular gland carcinoma (HSG) cells.


CORDYHEPTAPEPTIDE A

A homodectic cyclic peptide made up from N-methylglycyl, L-phenylalanyl, N-methyl-L-tyrosyl, L-isoleucyl, L-leucyl, N-methyl-D-phenylalanyl and L-prolyl residues linked in sequence. It is an antimalarial drug isolated from the insect pathogenic fungus Cordyceps.


corynoline

A benzophenanthridine alkaloid that is chelidonine substituted by a methyl group at position 13. Isolated from the aerial parts of Corydalis incisa, it acts as an acetylcholinesterase inhibitor and also exhibits antineoplastic and hepatoprotective activity.


3-O-trans-p-coumaroyl actinidic acid

A pentacyclic triterpenoid that is the cinnamate ester obtained by the formal condensation of the carboxy group of trans-4-coumaric acid with the hydroxy group at position 3 of actinidic acid (the 2alpha,3beta stereoisomer). It is isolated from the roots of Actinidia arguta and exhibits inhibitory activity towards pancreatic lipase.


2-O-E-p-coumaroyl alphitolic acid

A  pentacyclic triterpenoid that is lup-20(29)-en-28-oic acid substituted by a hydroxy group at position 3 and a [(2E)-3-(4-hydroxyphenyl)prop-2-enoyl]oxy group at position 2 (the 2alpha,3beta-stereoisomer ). It has been isolated from the root bark of  Zizyphus jujuba and Ziziphus cambodianus.


A pentacyclic triterpenoid that is the cinnamate ester obtained by the formal condensation of trans-4-coumaric acid with D:C-friedoolean-7,9(11)-dien-3beta-ol-29-oic acid. It is isolated from the stems of Lagenaria siceraria and exhibits cytotoxic activity against human hepatoma SK-Hep 1 cells.


A cinnamate ester obtained by the formal condensation of trans-4-coumaric acid with 2-(3,4-dihydroxyphenyl)ethyl beta-D-glucopyranoside. It is a phenolic glycoside derivative obtained from the aerial parts of Globularia alypum and exhibits antioxidant activity.


crambescidin 800

An organic heteropentacyclic guanidine alkaloid isolated from the marine sponge Crambe crambe and Batzella. It exhibits anti-HIV-1 and anti-HSV-1 activity.


CRAMBESCIDIN 826

An organic heteropentacyclic guanidine alkaloid isolated from maringe sponge Monanchora sp. It exhibits anti-HIV-1 and anti-HSV-1 activity.


crassifogenin C

A norlignan that is 3-deoxypentodialdo-5,4-oxirose substituted at positions 1 and 4 by 3,4-dihydroxyphenyl groups. It is isolated from the rhizomes of Curculigo crassifolia and exhibits strong radical scavenging activity.


crassolide

A cembrane diterpenoid isolated from Lobophytum michaelae and has been shown to exhibit cytotoxic activity.


CRASSUMOLIDE A

A cembrane diterpenoid isolated from the soft coral Lobophytum crassum and shown to have anti-inflammatory and antineoplastic activity.


CRATOXYARBORENONE A

A member of the class of xanthones that is 9H-xanthen-9-one substituted by a geranyl group at position 8, hydroxy groups at positions 1, 3, 5 and 7 and an isoprenyl group at position 2. It is isolated from Cratoxylum Sumatranum and exhibits cytotoxicity towards the KB (human oral epidermoid) cancer cell line.


CRATOXYARBORENONE B

A member of the class of xanthones that is 9H-xanthen-9-one substituted by hydroxy groups at positions 1, 3, 5 and 7 and two isoprenyl groups at positions 2 and 8 respectively. It is isolated from Cratoxylum Sumatranum and exhibits cytotoxicity towards the KB (human oral epidermoid) cancer cell line.


CRATOXYARBORENONE C

A member of the class of xanthones that is 9H-xanthen-9-one substituted by hydroxy groups at positions 1 and 3, methoxy groups at positions 5 and 7 and two isoprenyl groups at positions 2 and 8 respectively. It is isolated from Cratoxylum Sumatranum and exhibits cytotoxicity towards the KB (human oral epidermoid) cancer cell line


CRATOXYARBORENONE D

An organic heterotetracyclic compound that is 2,3-dihydro-5H-furo[3,2-b]xanthen-5-one substituted by hydroxy groups at positions 4, 7, 8 and 9, an isoprenyl group at position 6 and a prop-1-en-2-yl group at position 2. It is isolated from Cratoxylum Sumatranum and exhibits cytotoxicity towards the KB (human oral epidermoid) cancer cell line.


CRATOXYARBORENONE E

A member of the class of xanthones that is 9H-xanthen-9-one substituted by hydroxy groups at positions 1, 3 and 7, isoprenyl groups at positions 4 and 5 and a methoxy group at position 6. It is isolated from Cratoxylum Sumatranum and exhibits cytotoxicity towards the KB (human oral epidermoid) cancer cell line.


CRATOXYARBORENONE F

A member of the class of xanthones that is 9H-xanthen-9-one substituted by hydroxy groups at positions 1 and 6 and a methoxy group at position 4. It is isolated from Cratoxylum Sumatranum and exhibits cytotoxicity towards the KB (human oral epidermoid) cancer cell line.


A cardenolide glycoside that is strophanthidin attached to a 4,6-dideoxy-3-O-(beta-D-glucopyranosyl)-2-O-methyl-beta-D-xylo-hexopyranosyl residue at position 3 via a glycosidic linkage. Isolated from Crossosoma bigelovii, it exhibits cytotoxic activity.


An azaphilone that is 7,8-dihydro-6H-oxireno[j]isochromene substituted by a hepta-1,3,5-trien-1-yl group at position 3, a [3-hydroxybutanoyl]oxy group at position 7, a methyl group at position 7 and oxo groups at positions 6 and 8 respectively (the 3S,7S stereoisomer). A fungal metabolite, it is isolated from the fermentation broth of Penicillium solitum strain CT2108 and exhibits inhibitory activity against fatty acid synthase as well as fungicidal activity.


An azaphilone that is 7,8-dihydro-6H-isochromene substituted by a hepta-1,3,5-trien-1-yl group at position 3, a [3-hydroxybutanoyl]oxy group at position 7, a methyl group at position 7 and oxo groups at positions 6 and 8 respectively (the 3S,7S stereoisomer). A fungal metabolite, it is isolated from the fermentation broth of Penicillium solitum strain CT2108 and exhibits inhibitory activity against fatty acid synthase as well as fungicidal activity.


An extended flavonoid that consists of (2S)-flavanone substituted by a hydroxy group at position 5, methoxy groups at positions 3' and 4' , a prenyl group at position 6 and a gem-dimethylpyran ring fused across positions 7 and 8. Isolated from  Lonchocarpus utilis and Lonchocarpus urucu, it acts as a NADH:ubiquinone reductase inhibitor.


An extended flavonoid that consists of (2S)-flavanone substituted by hydroxy groups at positions 5 and 3', a methoxy group at position 4' , a prenyl group at position 6 and a gem-dimethylpyran ring fused across positions 7 and 8. Isolated from Lonchocarpus utilis and Lonchocarpus urucu, it acts as a NADH:ubiquinone reductase inhibitor.


An extended flavonoid that consists of (2S)-flavanone substituted by hydroxy groups at positions 5 and 4', a methoxy group at position 3' , a prenyl group at position 6 and a gem-dimethylpyran ring fused across positions 7 and 8. Isolated from Lonchocarpus utilis and Lonchocarpus urucu, it acts as a NADH:ubiquinone reductase inhibitor.


An extended flavonoid that consists of (2S)-flavanone substituted methoxy groups at positions 3' and 4', a prenyl group at position 6 and a gem-dimethylpyran ring fused across positions 7 and 8. Isolated from Lonchocarpus utilis and Lonchocarpus urucu, it acts as a NADH:ubiquinone reductase inhibitor.


(-)-cubebin

A lignan that consists of tetrahydrofuran-2-ol substituted by two 1,3-benzodioxol-5-ylmethyl groups at positions 3 and 4 respectively (the 2S,3R,4R stereoisomer). It is isolated from the leaves of Piper nigrum and exhibits analgesic, anti-inflammatory, antimicrobial and trypanocidal activities.


A lignan that consists of tetrahydrofuran-2-ol substituted by a 1,3-benzodioxol-5-ylmethyl group at positions 3 and a 3,4-dimethoxybenzyl group at position 4 (the 3R,4R stereoisomer). It is isolated from the leaves of Piper nigrum and exhibits histamine release inhibitory activity.


CUDRATRICUSXANTHONE A

A member of the class of xanthones that is 9H-xanthen-9-one substituted by hydroxy groups at positions 2, 3, 6 and 8, an isoprenyl group at position 1 and a 2-methylbut-3-en-2-yl group at position 5. It is isolated from the root barks of Cudrania tricuspidata and exhibits cytotoxicity towards human cancer cell lines.


cudranian 1

A flavonol 7-O-beta-D-glucoside that is kaempferol substituted by a p-hydroxybenzyl group at position 6 and a beta-D-glucopyranosyl moiety at position 7 via a glycosidic linkage. It is isolated from the root barks of Cudrania tricuspidata and exhibits radical scavenging effects against 1, 1-diphenyl-2-picrylhydrazyl (DPPH) and anti-lipid peroxidation efficacy on human low-density lipoprotein by TBARS assay.


cudranian 2

A flavonol 7-O-beta-D-glucoside that is quercetin substituted by a p-hydroxybenzyl group at position 6 and a beta-D-glucopyranosyl moiety at position 7 via a glycosidic linkage. It is isolated from the root barks of Cudrania tricuspidata and exhibits radical scavenging effects against 1, 1-diphenyl-2-picrylhydrazyl (DPPH) and anti-lipid peroxidation efficacy on human low-density lipoprotein by TBARS assay.


CUMINGIANOSIDE A

A triterpenoid saponin that is 13,30-cyclodammarane-3,7,23,24,25-pentol 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 B

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


CUMINGIANOSIDE C

A triterpenoid saponin that is 25-methoxy-13,30-cyclodammarane-3,7,23,24-tetrol esterified to the coressponding acetate ester 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.