Analgesic narcotic antagonists. 4. 7-Methyl-N-(cycloalkylmethyl)-3-hydroxy morphinan-6-one and -isomorphinan-6-one
摘要:
3,6-Dimethoxy-7 beta, 17-dimethyl-4-hydroxy-5,6,8,14-tetradehydromorphinan (2) was converted to the 4-deoxy compound 4 and hydrolyzed to a mixture of the B/C-cis (C series) and B/C-trans (T series) isomers of 7,8-didehydromorphinan-6-one, 5. Hydrogenation of the separated isomers gave 7-methyl-6-oxo derivatives 6a. 7,8-Dimethyl-(6b) or 7-methyl-8-ethylmorphinan-6-one (6c) was prepared by reaction of 5 with lithium organocuprates. The analgesic N-methyl compounds 6 were converted to 17-(cyclopropylmethyl) or 17-(cyclobutylmethyl) derivatives 10--13. Some of these compounds had mixed profiles of narcotic agonist-antagonist effects. Studies with drug-dependent monkeys indicated that several of these compounds with an analgesic-antagonist ratio of less than 0.4 substitute for morphine.
DOI:
10.1021/jm00186a025
作为产物:
描述:
17-Cyano-7α,8β-dimethyl-3-methoxymorphinan-6-one 以
盐酸 为溶剂,
以6.8 g (61%)的产率得到7α,8β-Dimethyl-3-methoxymorphinan-6-one Hydrochloride
参考文献:
名称:
7-Methyl-8.beta.-lower alkyl or 7-methyl-8-lower alkyl B/C cis or trans
7-Methyl-8.beta.-lower alkyl or 7-methyl-8-lower alkyl B/C cis or trans
申请人:Miles Laboratories, Inc.
公开号:US04230712A1
公开(公告)日:1980-10-28
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.
7-Methyl and 7-methyl-8-lower alkyl B/C cis or trans morphinan-6-one compounds, process for their preparation and pharmaceutical preparations containing them
申请人:MILES LABORATORIES, INC.
公开号:EP0019254B1
公开(公告)日:1982-09-01
US4230712A
申请人:——
公开号:US4230712A
公开(公告)日:1980-10-28
Analgesic narcotic antagonists. 4. 7-Methyl-N-(cycloalkylmethyl)-3-hydroxy morphinan-6-one and -isomorphinan-6-one
作者:David L. Leland、Michael P. Kotick
DOI:10.1021/jm00186a025
日期:1980.12
3,6-Dimethoxy-7 beta, 17-dimethyl-4-hydroxy-5,6,8,14-tetradehydromorphinan (2) was converted to the 4-deoxy compound 4 and hydrolyzed to a mixture of the B/C-cis (C series) and B/C-trans (T series) isomers of 7,8-didehydromorphinan-6-one, 5. Hydrogenation of the separated isomers gave 7-methyl-6-oxo derivatives 6a. 7,8-Dimethyl-(6b) or 7-methyl-8-ethylmorphinan-6-one (6c) was prepared by reaction of 5 with lithium organocuprates. The analgesic N-methyl compounds 6 were converted to 17-(cyclopropylmethyl) or 17-(cyclobutylmethyl) derivatives 10--13. Some of these compounds had mixed profiles of narcotic agonist-antagonist effects. Studies with drug-dependent monkeys indicated that several of these compounds with an analgesic-antagonist ratio of less than 0.4 substitute for morphine.