Carboxyalkyl heterocyclic derivatives, pharmaceutically acceptable salts thereof, and therapeutic agents containing said compounds as an effective component are useful pharmaceuticals for the treatment of diabetic complications such as diabetic neuropathy, diabetic cataracts and retinopathy, diabetic nephropathy, diabetic dermopathy, and other diabetic microangiopathy. The compounds of the present invention are represented by the following general formula (A): ##STR1## The compounds of the present invention exhibit excellent inhibitory action towards aldose reductase with a high enzyme selectivity. Accordingly, they are useful as drugs for the therapy and prevention of various types of diabetic complications without substantially inhibiting aldehyde reductase.
羧基烷基杂环衍
生物及其药学上可接受的盐,以及含有该化合物作为有效成分的治疗剂,是用于治疗糖尿病并发症,例如糖尿病神经病变、糖尿病白内障和视网膜病变、糖尿病肾病、糖尿病皮肤病和其他糖尿病微血管病的有用药物。本发明的化合物由以下一般式(A)表示:##STR1## 本发明的化合物表现出对醛糖还原酶的优异抑制作用,具有高酶选择性。因此,它们可用作治疗和预防各种类型的糖尿病并发症的药物,而不会显著抑制醛糖还原酶。