申请人:Eisai Co., Ltd.
公开号:US04540704A1
公开(公告)日:1985-09-10
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, independently represent a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group; Y represents an oxygen atom or sulfur atom, R.sub.1 and R.sub.2, which may be the same or different, independently represent a hydrogen atom, a lower alkyl group or phenyl group, or both may form a ring with carbon atoms, excluding the case wherein both R.sub.1 and R.sub.2 are hydrogen atom, and n represents 0 or 1. The novel hydantoin derivatives and salts thereof have excellent effects for the treatment of the complications of diabetes mellitus.
新型的恶唑啉衍生物及其盐,制备方法和含有它们的药物,其中恶唑啉衍生物由通式表示:##STR1## 其中X1和X2,可能相同或不同,独立地表示氢原子、卤素原子、低级烷基或低级烷氧基;Y表示氧原子或硫原子,R1和R2,可能相同或不同,独立地表示氢原子、低级烷基或苯基,或者两者可以与碳原子形成环,但不包括R1和R2都是氢原子的情况,n表示0或1。这些新型的恶唑啉衍生物及其盐对于治疗糖尿病并发症具有出色的疗效。