76689-93-5 (2R,6bR,9aR,11aR,11bR,12S,12aR)-7,9-bis(acetyloxy)-2-furan-2-yl-5-hydroxy-1,6b,9a,12a-tetramethyl-3,3a,6,6a,6b,7,8,9,9a,10,11a,11b,12,12a-tetradecahydro-2H,5H-cyclopenta[b]furo[2',3',4':4,5]naphtho[2,1-d]oxepin-12-yl (2E)-2-methylbut-2-enoate 87708-01-8 (2S,3R,10R,10aS)-10,10a-dimethyl-1,2,3,4,10,10a-hexahydro-2,10-epithiopyrimido[1,2-a]indole-3-carbonitrile