Spiro-quinolone hydantoins having utility in preventing or alleviating chronic diabetic complications such as cataracts, reinopathy and neuropathy of the formula:
and the pharmaceutically acceptable acid addition salts thereof, wherein n is 1 or 2 and R, and R2 are each hydrogen, chloro, bromo, fluoro, C,-C3 alkyl or C1-C3 alkoxy; pharmaceutical composition containing them, and processes for their preparation.
具有预防或减轻慢性糖尿病并发症(如白内障、再障和神经病变)作用的螺
喹诺酮海因,其式如下
及其药学上可接受的酸加成盐,其中 n 为 1 或 2,R 和 R2 分别为氢、
氯、
溴、
氟、C,-C3 烷基或 C1-C3 烷氧基;含有它们的药物组合物及其制备工艺。