Disclosed are 7-methyl, 8.beta.-lower alkyl and 7 methyl-8-lower alkyl substituted B/C Cis or Trans morphinan-6-one compounds characterized by the structural formula: ##STR1## Specific compounds, included within the scope of the foregoing general formula wherein R.sub.1 is H or methyl, R.sub.2 is cyclopropylmethyl or cyclobutylmethyl, R.sub.3 is H, methyl, ethyl or n-propyl and R.sub.4 is H or methyl are useful as mixed analgesics/narcotic antagonists.
揭示了具有以下结构式的7-
甲基,8.beta.-较低烷基和7-
甲基-8-较低烷基取代的B/C顺式或反式
吗啡酮化合物:具体化合物包括在上述一般式范围内,其中R.sub.1为H或
甲基,R.sub.2为
环丙基甲基或
环丁基甲基,R.sub.3为H,
甲基,乙基或正丙基,R.sub.4为H或
甲基,可用作混合镇痛剂/麻醉
拮抗剂。