申请人:Sandoz Ltd.
公开号:US04178377A1
公开(公告)日:1979-12-11
The present invention concerns novel compounds of formula I, ##STR1## wherein R.sub.1 is phenethyl, phenethyl monosubstituted in the phenyl ring by fluorine, chlorine, bromine, lower alkyl or lower alkoxy, butyrophenone or butyrophenone monosubstituted in the phenyl ring by fluorine, chlorine, bromine, lower alkyl or lower alkoxy, R.sub.2 is an OR.sub.5 group, wherein R.sub.5 is lower alkyl, lower alkenyl, phenyl or phenyl monosubstituted by fluorine, chlorine, bromine, lower alkyl or lower alkoxy, or an ##STR2## group, wherein independently each of R.sub.6 and R.sub.7 is hydrogen, lower alkyl or cycloalkylalkyl, cycloalkyl, phenyl, phenyl monosubstituted by fluorine, chlorine, bromine, lower alkyl or lower alkoxy, lower phenylalkyl or lower phenylalkyl monosubstituted in the phenyl ring by fluorine, chlorine, bromine, lower alkyl or lower alkoxy, or wherein R.sub.6 and R.sub.7 together with the nitrogen atom to which they are bound, form a saturated heterocycle of 5 to 6 ring members, which may optionally contain as second hetero atom oxygen, sulphur or nitrogen substituted by lower alkyl, R.sub.3 is lower alkyl or cycloalkylalkyl, cycloalky, phenyl or phenyl monosubstituted by fluorine, chlorine, bromine, lower alkyl or lower alkoxy, or when R.sub.1 is phenethyl or phenethyl monosubstituted in the phenyl ring by fluorine, chlorine, bromine, lower alkyl or lower alkoxy, alternatively lower alkenyl, and R.sub.4 is hydrogen or lower alkyl, or R.sub.3 and R.sub.4 together with the carbon atom to which they are bound form a cycloalkyl ring of 4 to 6 carbon atoms, and analgesic pharmaceutical composition containing the compounds.
本发明涉及公式I的新化合物,其中R.sub.1是苯乙基,苯乙基在苯环上被氟、氯、溴、低烷基或低烷氧基单取代,丁酰苯或丁酰苯在苯环上被氟、氯、溴、低烷基或低烷氧基单取代,R.sub.2是OR.sub.5基团,其中R.sub.5是低烷基、低烯基、苯或苯被氟、氯、溴、低烷基或低烷氧基单取代,或者是##STR2##基团,其中R.sub.6和R.sub.7中的每一个独立地是氢、低烷基或环烷基烷基、环烷基、苯、苯被氟、氯、溴、低烷基或低烷氧基单取代、低苯基烷基或低苯基烷基在苯环上被氟、氯、溴、低烷基或低烷氧基单取代,或者R.sub.6和R.sub.7与它们所结合的氮原子一起形成一个由5到6个环成的饱和杂环,该杂环可以选择性地包含作为第二杂原子的氧、硫或氮,被低烷基取代,R.sub.3是低烷基或环烷基烷基、环烷基、苯、苯被氟、氯、溴、低烷基或低烷氧基单取代,或者当R.sub.1是苯乙基或苯乙基在苯环上被氟、氯、溴、低烷基或低烷氧基单取代时,可以选择性地是低烯基,R.sub.4是氢或低烷基,或者R.sub.3和R.sub.4与它们所结合的碳原子一起形成4到6个碳原子的环烷基环,并且包含这些化合物的镇痛药物组成物。