申请人:Canadian Patents & Development Limited
公开号:US04468403A1
公开(公告)日:1984-08-28
Pharmaceutical compounds of the general formula (1) have been prepared ##STR1## and non-toxic pharmaceutically acceptable salts thereof, wherein R.sub.1 is a lower alkyl, phenyl lower alkyl, amino substituted phenyl lower alkyl, nitro substituted phenyl lower alkyl, cycloalkyl lower alkyl or a lower alkenyl substituent, R.sub.2 is a member selected from the group consisting of a cyano, pyridylsulfonyl, lower alkyl substituted sulfonyl, phenylsulfonyl, lower alkyl substituted phenylsulfonyl, lower alkoxy substituted phenylsulfonyl, halogen substituted phenylsulfonyl, nitro substituted phenylsulfonyl, amino substituted phenylsulfonyl and lower alkyl amido substituted phenylsulfonyl; R.sub.3 is a hydrogen or halogen atom; and R.sub.4 is a hydrogen, lower alkyl or lower alkoxy substituent, lower denoting a straight or branched chain having from 1-4 carbon atoms. These compounds exhibit analgesic agonist activity or analgesic agonist-antagonist activities.
通式(1)的药物化合物已经制备出来 ##STR1## 以及其非毒性药用可接受的盐,其中R.sub.1是较低的烷基,苯基较低的烷基,氨基取代的苯基较低的烷基,硝基取代的苯基较低的烷基,环烷基较低的烷基或较低的烯基取代基,R.sub.2是从群组中选择的成员,该群组包括氰基,吡啶基磺酰基,较低的烷基取代的磺酰基,苯基磺酰基,较低的烷基取代的苯基磺酰基,较低的烷氧基取代的苯基磺酰基,卤素取代的苯基磺酰基,硝基取代的苯基磺酰基,氨基取代的苯基磺酰基和较低的烷基酰胺取代的苯基磺酰基;R.sub.3是氢或卤素原子;R.sub.4是氢,较低的烷基或较低的烷氧基取代基,较低表示直链或支链,具有1-4个碳原子。这些化合物表现出镇痛激动剂活性或镇痛激动剂-拮抗剂活性。