申请人:John Wyeth & Brother Limited
公开号:US05112832A1
公开(公告)日:1992-05-12
The invention concerns compounds of formula I ##STR1## or a salt thereof, wherein R.sup.1 and R.sup.2 each independently represent hydrogen, lower alkyl, lower alkoxy, carboxyloweralkyl, carboxy, hydroxyloweralkyl, halogen, haloloweralkyl, lower alkoxycarbonyl, optionally substituted aryl or optionally substituted aralkyl, n represents an integer from 3 to 6; R.sup.3 represents hydrogen or single or multiple substitution on one or more of the aliphatic carbons by one or more substituents selected from lower alkyl, optionally substituted aryl and optionally substituted aralkyl; A represents a group of formula (i) or (ii) below: --CR.sup.4 R.sup.5 --(CR.sup.6 R.sup.7).sub.m -- (i) --CX--(CR.sup.6 R.sup.7).sub.m -- (ii) in which R.sup.4, R.sup.6 and R.sup.7 each independently represent hydrogen or lower alkyl (providing that when R.sup.5 is NH.sub.2, R.sup.0 is hydrogen); m is 0 or 1; R.sup.5 represents hydrogen, NH.sub.2, OH or loweralkoxy, and X is .dbd.O, .dbd.NH or .dbd.NOH, the attachment of A to B being from either end, and B represents an optionally substituted aryl or heteroaryl radical which compounds possess anti-inflammatory activity. Also disclosed is a process for preparing a useful intermediate to compounds of formula I.
本发明涉及公式I的化合物 ##STR1## 或其盐,其中R.sup.1和R.sup.2各自独立地表示氢,低烷基,低烷氧基,羧基低烷基,羧基,羟基低烷基,卤素,卤代低烷基,低烷氧羰基,可选地取代的芳基或可选地取代的芳基烷基,n表示3到6的整数;R.sup.3表示氢或在一个或多个脂肪碳上单个或多个取代基上的单个或多个取代基,所述取代基选自低烷基,可选地取代的芳基和可选地取代的芳基烷基;A表示以下式(i)或(ii)的基团:--CR.sup.4 R.sup.5 --(CR.sup.6 R.sup.7).sub.m -- (i) --CX--(CR.sup.6 R.sup.7).sub.m -- (ii)其中R.sup.4,R.sup.6和R.sup.7各自独立地表示氢或低烷基(当R.sup.5为NH.sub.2时,R.sup.0为氢);m为0或1;R.sup.5表示氢,NH.sub.2,OH或低烷氧基,X为.dbd.O,.dbd.NH或.dbd.NOH,A与B的连接可以从任一端进行,B表示可选地取代的芳基或杂环芳基基团,这些化合物具有抗炎活性。本发明还公开了制备公式I化合物有用中间体的方法。