[CAS NO. 18455-98-6]  Bakkenolide B

2-Butenoic acid, 2-methyl-, (2′R,3′R,3′aR,4′S,7′S,7′aR)-3′-(acetyloxy)decahydro-7′,7′a-dimethyl-4-methylene-2-oxospiro[furan-3(2H),2′-[2H]inden]-4′-yl ester, (2Z)-

Crotonic acid, 2-methyl-, 7′-ester with 3′a,4,4′,5,5′,6′,7′,7′aβ-octahydro-1′β,7′α-dihydroxy-3′aβ,4′β-dimethyl-4-methylenespiro[furan-3(2H),2′-indan]-2-one acetate, (Z)-

2-Butenoic acid, 2-methyl-, 3′-(acetyloxy)decahydro-7′,7′a-dimethyl-4-methylene-2-oxospiro[furan-3(2H),2′-[2H]inden]-4′-yl ester, [2′R-[2′α,3′α,3′aα,4′β(Z),7′α,7′aα]]-

Spiro[furan-3(2H),2′-indan]-2-one, octahydro-1′,7′-dihydroxy-3′a,4′-dimethyl-4-methylene-, 1′-acetate 2-methylcrotonate, (Z)-

Bakkenolide B

Fukinolide

(-)-Bakkenolide B