PROCESS FOR PRODUCING OPTICALLY ACTIVE IMIDAZOLE COMPOUNDS, INTERMEDIATES FOR SYNTHESIZING THE SAME, AND PROCESS FOR PRODUCING THE SAME
申请人:YOSHITOMI PHARMACEUTICAL INDUSTRIES, LTD.
公开号:EP0972768A1
公开(公告)日:2000-01-19
The present invention provides a method for producing an optically active 4-[α-hydroxy-5-(1-imidazolyl)-2-methylbenzyl]-3,5-dimethylbenzoic acid or a pharmaceutically acceptable salt thereof, which includes subjecting a compound of the formula (I)
wherein each symbol in the formula is as defined in the specification, to optical resolution by fractional crystallization to give an optically active compound thereof and subjecting the compound to hydrolysis reaction. According to this method, a resolution method useful for industrial large-scale production of the optically active compound of 4-[α-hydroxy-5-(1-imidazolyl)-2-methylbenzyl]-3,5-dimethylbenzoic acid, which is useful as a thromboxane synthetase inhibitor and an agent for the prophylaxis and treatment of diabetic complications, can be obtained.
本发明提供了一种生产光学活性 4-[α-羟基-5-(1-咪唑基)-2-甲基苄基]-3,5-二甲基苯甲酸或其药学上可接受的盐的方法,该方法包括将式(I)化合物
其中式中各符号如说明书中所定义,通过分馏结晶进行光学解析,得到其光学活性化合物,并使该化合物进行水解反应。根据该方法,可以获得一种用于工业化大规模生产 4-[α-羟基-5-(1-咪唑基)-2-甲基苄基]-3,5-二甲基苯甲酸光学活性化合物的解析方法,该化合物可用作血栓素合成酶抑制剂和预防及治疗糖尿病并发症的药物。