15291-77-7 5H-Dicyclopenta(b,c)furan-3,5a(6H)-diacetic acid, 6-tert-butyl-3a-carboxyhexahydro-alpha5a,1,2,3,5,8-hexahydroxy-alpha3-methyl-, tri-gamma-lactone 99796-69-7 9H-1,7a-(Epoxymethano)-1H,6aH-cyclopenta(c)furo(2,3-b)furo(3',2':3,4)cyclopenta(1,2-d)furan-5,9,12(4H)-trione, 3-(1,1-dimethylethyl)hexahydro-4,7b,11-trihydroxy-8-methyl-, (1R,3S,3aS,4R,6aR,7aR,7bR,8S,10aS,11R,11aR)- 9H-1,7a-(Epoxymethano)-1H,6aH-cyclopenta(c)furo(2,3-b)furo(3',2':3,4)cyclopenta(1,2-d)furan-5,9,12(4H)-trione, 3-(1,1-dimethylethyl)hexahydro-4,7b,11-trihydroxy-8-methyl-, (1R-(1alpha,3beta,3aS*,4beta,6aalpha,7aalpha,7balpha,8alpha,10aalpha,11beta,11aR*))- BN 52021 BN 52051 Ginkgolide A, 1-hydroxy-, (1beta)- Ginkgolide B Ginkolide B