55786-21-5 | Spiro[5,12c-epoxy-4H,12cH,15aH,16H-furo[2',3':7,8]indolizino[8,1-cd]pyrido[1,2,3-lm]carbazole-6(7H),2'(2'aH)-[1H,15aH]furo[2',3':7,8]indolizino[8,1-cd]carbazole]-7'-carboxylicacid, 2,3,4',4a,5,5',6',8',13,13',14,14',17,17a-tetradecahydro-9-methoxy-,methyl ester, (2'S,2'aR,3aR,4aS,5R,5'aR,12bR,12'bR,12cR,15aS,15'aR,17aS)- (9CI) | C43H48 N4 O6 |