N-(cyclopropylmethyl)normorphine

17-Cyclopropylmethyl-7,8-didehydro-4,5α-epoxymorphinan-3,6α-diol

7,8-Didehydro-4,5α-epoxy-17-(cyclopropylmethyl)morphinan-3,6α-diol

4,5α-Epoxy-17-(cyclopropylmethyl)-7,8-didehydromorphinan-3,6α-diol