5beta,20-epoxy-1,2alpha-,4-,7beta-,10beta-, 13alpha-hexahydroxytax-11-en-9-one 4-acetate 2-benzoate 7-propionate 13-ester,(2R,3S)-N-tertbutoxycarbonyl-3-(2-furyl)isoserine
5beta,20-epoxy-1,2alpha-,4-,7beta-,10beta-, 13alpha-hexahydroxytax-11-en-9-one 4-acetate 2-benzoate 7-propionate 13-ester,(2r,3s)-n-tertbutoxycarbonyl-3-(2-furyl)isoserine