申请人:Sumitomo Dainippon Pharma Co., Ltd.
公开号:US20180230141A1
公开(公告)日:2018-08-16
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, R
1
and R
2
are identical or different and each independently represent a C
1-6
alkyl group, R
3
, R
4
, R
5
, R
6
, R
7
, R
8
, R
9
, R
10
, R
11
, R
12
, and R
13
each represent a hydrogen atom, a C
1-6
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.
本发明解决了提供一种用作药物的5-(噻唑-4-基)吲哚-2-酮衍生物的纯化方法的问题。本发明提供了一种化合物的纯化方法,该化合物由式(1)表示(在该式中,每个n独立地为2、3、4、5或6,R1和R2相同或不同,每个独立地表示C1-6烷基基团,R3、R4、R5、R6、R7、R8、R9、R10、R11、R12和R13分别表示氢原子、C1-6烷基基团、芳基或杂环基),或其几何异构体,或其混合物,或其药学上可接受的盐。该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。