申请人:Eisai Co., Ltd.
公开号:US04874869A1
公开(公告)日:1989-10-17
Novel hydantoin derivatives and salts thereof, the process for the preparation thereof, and medicines containing the same, wherein the hydantoin derivatives are represented by the general formula: ##STR1## wherein X.sub.1 and X.sub.2, which may be the same or different, mean independently hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group; Y means oxygen atom or sulfur atom, R.sub.1 and R.sub.2, which may be the same or different, mean independently hydrogen atom, a lower alkyl group or phenyl group, or the both may form a ring with a carbon atom which is combined with them, excluding the case wherein both R.sub.1 and R.sub.2 are hydrogen atom at the same time, and n means an integer of 0 or 1. The novel hydantoin derivatives and salts thereof have excellent effects for the treatment of the complications of the diabetes mellitus.
新型的氨基咪唑衍生物及其盐,制备方法和含有它们的药物。其中,氨基咪唑衍生物由通式所示:##STR1##其中X1和X2可以相同也可以不同,分别表示氢原子、卤素原子、低碳基或低烷氧基;Y表示氧原子或硫原子;R1和R2可以相同也可以不同,分别表示氢原子、低碳基或苯基,或两者可以与它们结合的碳原子形成环,除非R1和R2同时为氢原子的情况,n表示0或1的整数。这些新型的氨基咪唑衍生物及其盐对于糖尿病并发症的治疗具有优秀的效果。