142132-39-6 8H,14H-13a,14b-Epoxy-7a,1-ethanylylidene-3H-benzo[4',5']cyclohept[1',2':7,7a]indeno[1,2-c]furan-16-one,3a,4,4a,7,9,9a,10,11,12,13-decahydro-3,3,5,10,10-pentamethyl-17-(1-methylethyl)-,[3aR-(3aa,4aa,7ab,9aa,13ab,14aS*,14ba)]- 124673-59-2 Spiro[7,10-methano-9H-benzo[a]cyclopenta[d]cyclooctene-9,3'(2'H)-naphtho[2,3-b]furan]-2'-one,1,2,3,3a,3'a,4,4',5,6,6',7,7',8,8',8'a,9',9'a,10,11,11a-eicosahydro-5',6,8'a,10,11a-pentamethyl-3-(1-methylethyl)-,[3R-[3a,3ab,6a,7a,9a(3'aS*,8'aS*,9'aS*),10a,11a 134887-86-8 Spiro[benzo[4,5]cyclodeca[1,2-b]furan-12(2H),2'-oxiran]-2-one,8,9,11,13-tetrakis(acetyloxy)-4-chlorotetradecahydro-13a-hydroxy-1,8a-dimethyl-5-methylene-,[1R-(1R*,3aR*,4S*,8S*,8aS*,9S*,11R*,12R*,12aS*,13S*,13aR*)]-