Polimorfi 2-(3-ciano-4-izobutiloksifenil)-4-metil-5-tiazol - karboksilne kisline in postopek priprave

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专利权人:

Teijin Limited

发明人:

Matsumoto Koichi,Watanabe Kenzo,Hiramatsu Toshiyuki,Kitamura Mitsutaka

申请号：

SI9931060

公开号：

SI1956015T2

申请日:

1999.06.18

申请国别(地区):

SI

年份:

2018

代理人:

摘要：

The present invention provides a technique of selectively producing a polymorph crystal C of 2-(3-cyano-4-isobutyloxyphenyl)-4-methyl-5-thiazolecarboxylic acid. The present invention also provides a method of producing the said polymorphs of 2-(3-cyano-4-isobutyloxyphenyl)-4-methyl-5-thiazolecarboxylic acid, which comprises crystallizing under the conditions defined by a specific temperature and a composition of a mixed solvent of methanol and water.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/