申请人:Sumitomo Dainippon Pharma Co., Ltd.
公开号:US10377749B2
公开(公告)日:2019-08-13
The present invention addresses the problem of providing a purification method for a 5-(thiazol-4-yl)indolin-2-one derivative that is useful as a medication. The present invention provides a purification method for a compound represented by formula (1) (in the formula, each n is independently 2, 3, 4, 5, or 6, R1 and R2 are identical or different and each independently represent a C1-6 alkyl group, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, and R13 each represent a hydrogen atom, a C1-6 alkyl group, an aryl group, or a heteroaryl group), or a geometric isomer thereof, or a mixture thereof, or a pharmaceutically acceptable salt thereof. The purification method includes a purification step performed using a solid-phase support adsorbent in the presence of a purification solvent.
本发明要解决的问题是提供一种可用作药物的 5-(噻唑-4-基)吲哚啉-2-酮衍生物的纯化方法。本发明提供了一种由式(1)代表的化合物(式中,每个 n 独立地为 2、3、4、5 或 6,R1 和 R2 相同或不同且各自独立地代表 C1-6 烷基,R3、R4、R5、R6、R7、R8、R9、R10、R11、R12 和 R13 各自代表氢原子、C1-6 烷基、芳基或杂芳基),或其几何异构体,或其混合物,或其药学上可接受的盐的纯化方法。纯化方法包括在纯化溶剂存在下使用固相支持吸附剂进行的纯化步骤。