5'-(4-chlorophenyl)-17-(cyclopropylmethyl)-6,7-didehydro-4,5-epoxy-3-hydroxy-14-(3-phenylpropoxy)pyrido(2',3'-6,7)morphinan
5'-(4-chlorophenyl)-17-(cyclopropylmethyl)-6,7-didehydro-4,5-epoxy-3-hydroxy-14-(3-phenylpropoxy)pyrido(2',3'-6,7)morphinan