申请人:Daiichi Sankyo Company, Limited
公开号:US20160096803A1
公开(公告)日:2016-04-07
The present invention provides a production intermediate of an atropisomer of a pyrrole derivative having excellent mineralocorticoid receptor antagonistic activity, a method for producing the same, and a crystal thereof. A method for producing an atropisomer of a pyrrole derivative including a step of resolving a compound represented by the following general formula (I) [wherein R
1
represents a methyl group or a trifluoromethyl group, R
2
represents a hydrogen atom or a C1-C3 alkoxy group, and n represents an integer selected from 1 to 3] into its atropisomers, characterized by using an optically active amine having a cinchonine skeletal formula, and a crystal of (S)-1-(2-hydroxyethyl)-4-methyl-N-[4-(methylsulfonyl)phenyl]-5-[2-(trifluoromethyl)phenyl]-1H-pyrrole-3-carboxamide.
本发明提供了一种具有优异的矿物皮质激素受体拮抗活性的吡咯衍生物的异构体的生产中间体,以及生产该中间体的方法和其晶体。一种生产吡咯衍生物的异构体的方法,包括将由下述一般式(I)表示的化合物(其中R1代表甲基基团或三氟甲基基团,R2代表氢原子或C1-C3烷氧基团,n代表从1到3中选择的整数)分解成其异构体的步骤,其特征在于使用具有奎宁骨架式的光学活性胺,并且晶体为(S)-1-(2-羟乙基)-4-甲基-N-[4-(甲磺基)苯基]-5-[2-(三氟甲基)苯基]-1H-吡咯-3-羧酰胺。