申请人:John Wyeth & Brother Limited
公开号:US04975431A1
公开(公告)日:1990-12-04
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.4 is hydrogen); m is O 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 a 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.
该发明涉及公式I的化合物##STR1##或其盐,其中R.sup.1和R.sup.2分别独立表示氢、较低的烷基、较低的烷氧基、羧基较低烷基、羧基、较低的羟基烷基、卤素、卤代较低烷基、较低的烷氧羰基、可选择地取代的芳基或可选择地取代的芳基烷基,n表示一个整数,范围从3到6;R.sup.3表示氢或在一个或多个脂肪碳上单一或多重取代,取代基选自较低的烷基、可选择地取代的芳基和可选择地取代的芳基烷基;A表示以下公式(i)或(ii)的一个基团:--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分别独立表示氢或较低的烷基(提供当R.sup.5为NH.sub.2时,R.sup.4为氢);m为O或1;R.sup.5表示氢、NH.sub.2、OH或较低的烷氧基,X为.dbd.O、.dbd.NH或.dbd.NOH,A连接到B的方式可以是从任一端连接,B表示一个可选择地取代的芳基或杂环芳基基团,这些化合物具有抗炎活性。还公开了一种制备公式I化合物有用中间体的方法。