(1R,5aR,12aR,13aS)-rel-2,3,11,12,12a,13-hexahydro-14-methoxy-1,12,12-trimethyl-5H,6H-5a,13a-(iminomethano)-1H-indolizino[7,6-b]carbazol-14-one
(1R,5aR,12aS,13aS)-rel-2,3,11,12,12a,13-hexahydro-14-methoxy-1,12,12-trimethyl-5H,6H-5a,13a-(iminomethano)-1H-indolizino[7,6-b]carbazol-14-one
(1S,5aR,12aS,13aS)-rel-2,3,11,12,12a,13-hexahydro-14-methoxy-1,12,12-trimethyl-5H,6H-5a,13a-(iminomethano)-1H-indolizino[7,6-b]carbazol-14-one