A 1,4-benzoxazine-2-acetic acid compound of the formula (I)
wherein each symbol is as defined in the specification, a pharmaceutically acceptable salt thereof, a method for production thereof, and a pharmaceutical composition, an aldose reductase inhibitor and an agent for the prevention and/or treatment of the complications of diabetes, which contain the same. The compound (I) of the present invention and pharmaceutically acceptable salts thereof have aldose reductase inhibitory action and are superior in safety. Accordingly, they are useful as an agent for the prevention and/or treatment of the complications of diabetes such as faulty union of corneal injury, cataract, neurosis, retinopathy and nephropathy, in particular, cataract and neurosis.
一种式(I)的 1,4-
苯并恶嗪-2-
乙酸化合物
其中各符号如说明书中所定义、其药学上可接受的盐、其生产方法,以及含有这些成分的药物组合物、醛糖还原酶
抑制剂和预防和/或治疗糖尿病并发症的制剂。本发明的化合物(I)及其药学上可接受的盐类具有醛糖还原酶抑制作用,且安全性优越。因此,它们可作为预防和/或治疗糖尿病并发症的药物,如角膜损伤的错合、白内障、神经衰弱、视网膜病变和肾病,特别是白内障和神经衰弱。