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,苯乙基在苯环上单取代为氟、氯、溴、低碳烷基或低碳基氧,丁酰苯酮或丁酰苯酮在苯环上单取代为氟、氯、溴、低碳烷基或低碳基氧,R.sub.2是OR.sub.5基团,其中R.sub.5是低碳烷基、低碳烯基、苯或苯单取代为氟、氯、溴、低碳烷基或低碳基氧,或者是##STR2##基团,其中独立的R.sub.6和R.sub.7中的每一个是氢、低碳烷基或环烷基烷基、环烷基、苯、苯单取代为氟、氯、溴、低碳烷基或低碳基氧、低苯基烷基或低苯基烷基在苯环上单取代为氟、氯、溴、低碳烷基或低碳基氧,或者R.sub.6和R.sub.7与它们连接的氮原子一起形成有5到6个环成员的饱和杂环,该环可以选择性地包含第二个杂原子氧、硫或氮,被低碳基取代的R.sub.3是低碳烷基或环烷基烷基、环烷基、苯或苯单取代为氟、氯、溴、低碳烷基或低碳基氧,或者当R.sub.1是苯乙基或苯乙基在苯环上单取代为氟、氯、溴、低碳烷基或低碳基氧时,也可以是低碳烯基,R.sub.4是氢或低碳烷基,或者R.sub.3和R.sub.4与它们连接的碳原子一起形成有4到6个碳原子的环烷基环,以及含有这些化合物的镇痛药物组成。