申请人:Pfizer Inc.
公开号:US04117230A1
公开(公告)日:1978-09-26
A series of spiro-hydantoin compounds has been prepared by condensing the appropriate carbonyl ring compound, such as the corresponding 1-indanone, 1-tetralone, 4-chromanone, thiochroman-4-one, 7,8-dihydroquinolin-5(6H)-one, 6,7-dihydropyrindin-5(5H)-one, thiondane-3-one-1,1-dioxide and 4-oxoisothiochroman-2,2-dioxide, respectively, with potassium cyanide and ammonium carbonate. The resulting hydantoin derivatives are found to be useful in preventing or alleviating chronic diabetic complications. Preferred member compounds include spiro-[imidazolidine-4,1'-indan]-2,5-dione, 6-fluoro-spiro-[chroman-4,4'-imidazolidine]-2',5'-dione, 6-chloro-spiro-[chroman-4,4'-imidazolidine]-2',5'-dione, 6,7-dichloro-spiro-[chroman-4,4'-imidazolidine]-2',5'-dione, 6,8-dichloro-spiro-[chroman-4,4'-imidazolidine]-2',5'-dione, 6'-fluoro-spiro-[imidazolidine-4,4'-thiochroman]-2,5-dione and 6',7'-dichloro-spiro-[imidazolidine-4,4'-thiochroman]-2,5-dione.
已制备了一系列螺环咪唑烷二酮化合物,通过将适当的酮环化合物(如相应的1-茚酮、1-四氢萘酮、4-色酮、硫色萘-4-酮、7,8-二氢喹啉-5(6H)-酮、6,7-二氢吡啶啉-5(5H)-酮、硫代烷-3-酮-1,1-二氧化物和4-氧代硫色萘-2,2-二氧化物)与氰化钾和碳酸铵缩合而成。发现所得的咪唑烷二酮衍生物在预防或缓解慢性糖尿病并发症方面具有用途。优选的化合物成员包括螺环-[咪唑烷-4,1'-茚]-2,5-二酮、6-氟螺环-[色酮-4,4'-咪唑烷]-2',5'-二酮、6-氯螺环-[色酮-4,4'-咪唑烷]-2',5'-二酮、6,7-二氯螺环-[色酮-4,4'-咪唑烷]-2',5'-二酮、6,8-二氯螺环-[色酮-4,4'-咪唑烷]-2',5'-二酮、6'-氟螺环-[咪唑烷-4,4'-硫色萘]-2,5-二酮和6',7'-二氯螺环-[咪唑烷-4,4'-硫色萘]-2,5-二酮。