申请人:Beecham Group p.l.c.
公开号:US04918091A1
公开(公告)日:1990-04-17
A compound of formula (I): ##STR1## or a tautomeric form thereof, or a pharmaceutically acceptable salt thereof, wherein: R represents hydrogen or alkyl; R.sup.1 represents an alkyl group or a substituted or unsubstituted aryl group; R.sup.2 and R.sup.3 each represent hydrogen, or R.sup.2 and R.sup.3 together represent a bond; A represents a benzene ring having in total up to five substituents; X represents oxygen, sulphur or a moiety NR.sup.4 wherein R.sup.4 represents hydrogen or alkyl; and n represents an integer in the range of from 2 to 6; a process for preparing such a compound, a composition containing such a compound and the use of the compound and composition in medicine.
一种具有以下式(I)的化合物:##STR1##或其互变异构体,或其药学上可接受的盐,其中:R代表氢或烷基;R.sup.1代表烷基或取代或未取代的芳基;R.sup.2和R.sup.3各自代表氢,或R.sup.2和R.sup.3一起代表键;A代表具有总共多达五个取代基的苯环;X代表氧、硫或一个基团NR.sup.4,其中R.sup.4代表氢或烷基;n代表范围在2到6之间的整数;一种制备这种化合物的方法,含有这种化合物的组合物以及该化合物和组合物在医学中的用途。