Compounds of formula (I): ##STR1## or a tautomeric form thereof, or a pharmaceutically acceptable salt thereof, or a pharmaceutically acceptable solvate thereof, wherein: A.sup.1 represents a substituted or unsubstituted aromatic heterocyclyl group; R.sup.1 represents a hydrogen atom, an alkyl group, an acyl group, an aralkyl group, wherein the aryl moiety may be substituted or unsubstituted, 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.sup.2 represents a benzene ring having in total up to five substituents; and n represents an integer in the range of from 2 to 6; pharmaceutical compositions containing such compounds and the use of such compounds and compositions in medicine.
化合物的
化学式(I):##STR1## 或其互变异构体,或其药学上可接受的盐,或其药学上可接受的溶剂化物,其中:A.sup.1代表取代或未取代的芳香杂环基团;R.sup.1代表氢原子,烷基,酰基,芳基烷基,其中芳基部分可以是取代或未取代的,或者取代或未取代的芳基基团;R.sup.2和R.sup.3各自代表氢原子,或者R.sup.2和R.sup.3一起代表一个键;A.sup.2代表苯环,其中总共有最多五个取代基;n代表在2到6的整数范围内;含有这种化合物的药物组合物以及这种化合物和组合物在医学上的用途。