(3R,3aR,5aS,7S,9aR,9bS)-7-isopropenyl-3a,9b-dimethyl-3-(1,3,5,5-tetramethyl-4-methyleneheptyl)tetradecahydro-5'H-spiro[cyclopenta[a]naphthalene-6,2'-furan]-5'-one 25-Ethyl,23-methyl-19-nor-24-methylene-3,4-seco-4(28)-lanosten-10,3-olide InChI=1/C33H54O2/c1-11-30(7,8)24(6)22(4)20-23(5)26-14-17-32(10)27-13-12-25(21(2)3)33(19-16-29(34)35-33)28(27)15-18-31(26,32)9/h22-23,25-28H,2,6,11-20H2,1,3-5,7-10H3/t22?,23?,25-,26+,27+,28-,31+,32-,33?/m0/s Sablacaurin A spiro[6H-benz[e]indene-6,2'(5'H)-furan]-5'-one, tetradecahydro-3a,9b-dimethyl-7-(1-methylethenyl)-3-(1,3,5,5-tetramethyl-4-methyleneheptyl)-, (3R,3aR,5aS,7S,9aR,9bS)-