Disclosed are 6-methylene-morphinan compounds corresponding to the formula: ##STR1## wherein R.sub.1 and R.sub.3 are H or methyl and R.sub.2 is cyclopropylmethyl or cyclobutylmethyl. These compounds are useful as mixed analgesics/narcotic antagonists.
本发明涉及一种6-亚甲基
吗啡的化合物,其对应的
化学式为:##STR1## 其中R.sub.1和R.sub.3为氢或甲基,R.sub.2为环丙甲基或环丁甲基。这些化合物可用作混合镇痛剂/麻醉拮抗剂。