3414-84-4 4,5-alpha-Epoxy-17-methyl-6-methylene morphinan-3-ol 4-27-00-02076 (Beilstein Handbook Reference) 6-Methylenedihydrodesoxymorphine 6-Methylenedihydroepoxymorphine BRN 0039900 Morphinan-3-ol, 4,5-alpha-epoxy-17-methyl-6-methylene-