Synonyms: | 6-codeinone;7,8-didehydro-4,5-alpha-epoxy-3-methoxy-17-methyl-morphinan-6-on;(5alpha)-7,8-didehydro-4,5-epoxy-3-methoxy-17-methylmorphinan-6-one;(5a)-7,8-Didehydro-4,5-epoxy-3-methoxy-17-methyl-morphinan-6-one;6-Oxocodeine;7,8-Didehydro-4,5a-epoxy-3-methoxy-17-methyl-morphinan-6-one;(5R)-3-Methoxy-7,8-didehydro-4,5-epoxy-17-methylmorphinan-6-one;3-Methoxy-17-methyl-4,5α-epoxy-7,8-didehydromorphinan-6-one |