申请人:Eisai R&D Management Co., Ltd.
公开号:US20170204068A1
公开(公告)日:2017-07-20
There are provided a method for producing 2,4-disubstituted pyrimidine-5-ol, and particularly, 2,4-dimethylpyrimidine-5-ol and an intermediate thereof used in industrial production. The production method according to the present invention includes a step of producing 2,4-disubstituted pyrimidine-5-ol according to a hydrolysis reaction of a 2,4-disubstituted-5-(4-(nitrophenyl)oxy)pyrimidine compound and is suitable for industrial production since an inexpensive and easily available starting material can be used, regioselectivity of a substituent group is easily controlled, impurities are easily controlled, and 2,4-disubstituted pyrimidine-5-ol can be produced without using reagents and intermediates causing health problems, risks and the like.
提供了一种生产2,4-二取代嘧啶-5-醇的方法,特别是用于工业生产的2,4-二甲基嘧啶-5-醇及其中间体。根据本发明的生产方法包括通过对2,4-二取代-5-(4-(硝基苯基)氧基)嘧啶化合物进行水解反应来生产2,4-二取代嘧啶-5-醇的步骤,由于可以使用价格低廉且易获得的起始材料,易于控制取代基团的区域选择性,易于控制杂质,并且可以在不使用引起健康问题、风险等的试剂和中间体的情况下生产2,4-二取代嘧啶-5-醇,因此适用于工业生产。