6,7-二甲氧基-1-甲基-1,2,3,4-四氢异喹啉 、 2-硝基苯乙酸 以to give 11.8 g N-(2-nitrophenylacetyl)-1,2,3,4-tetrahydro-6,7-dimethoxy-1-methylisoquinoline的产率得到N-(2-nitrophenylacetyl)-1,2,3,4-tetrahydro-6,7-dimethoxy-1-methylisoquinoline
参考文献:
名称:
2-amino (or hydroxy) phenethyl-1,2,3,4-tetrahydroisoquinolines as
N-(amino(or hydroxy) phenethyl)-1,2,3,4-tetrahydroisoquinolines, precursors thereof, and methods of preparation
申请人:PENNWALT CORPORATION
公开号:EP0051190A2
公开(公告)日:1982-05-12
Analgesic 1,2,3,4 tetrahydroisoquinolines of the formula
wherein R, and R2 respectively are hydrogen, hydroxy or alkoxy of 1 to 4 carbon atoms, R3 and R4 respectively are hydrogen or alkyl of 1 to 4 carbon atoms, and R5 is hydroxy, nitro or
wherein Rs and R7 respectively are hydrogen, alkyl of 1 to 4 carbon atoms or RCO- wherein R is hydrogen or alkyl of 1 to 4 carbon atoms; pharmaceutically acceptable addition salts thereof with non-toxic acids; analgesic compositions thereof in an inert, pharmaceutical carrier; and methods of preparation from corresponding R1, R2, R3 and R4-substituted tetrahydroisoquinolines.
2-amino (or hydroxy) phenethyl-1,2,3,4-tetrahydroisoquinolines as
申请人:Pennwalt Corporation
公开号:US04766131A1
公开(公告)日:1988-08-23
Analgesic 1,2,3,4-tetrahydroisoquinolines of the formula (1) ##STR1## wherein R.sub.1 and R.sub.2 respectively are hydrogen, hydroxy or alkoxy of 1 to 4 carbon atoms, R.sub.3 and R.sub.4 respectively are hydrogen or alkyl of 1 to 4 carbon atoms, and R.sub.5 is hydroxy, nitro or ##STR2## wherein R.sub.6 and R.sub.7 respectively are hydrogen, alkyl of 1 to 4 carbon atoms or RCO-- wherein R is hydrogen or alkyl of 1 to 4 carbon atoms; pharmaceutically acceptable addition salts thereof with non-toxic acids; analgesic compositions thereof in an inert, pharmaceutical carrier; and methods of preparation from corresponding R.sub.1, R.sub.2, R.sub.3 and R.sub.4 -substituted tetrahydroisoquinolines.