ETHYL (6BR,10AS)-2,3,6B,9,10,10A-HEXAHYDRO-2-OXO-1H-PYRIDO(3',4':4,5)PYRROLO(1,2,3-DE)QUINOXALINE-8(7H)-CARBOXYLATE
ethyl (6br,10as)-2,3,6b,9,10,10a-hexahydro-2-oxo-1h-pyrido(3',4':4,5)pyrrolo(1,2,3-de)quinoxaline-8(7h)-carboxylate