Polymorphe d'acide 2-(3-cyano-4-isobutyloxyphenyl)-4-methyl-5-thiazolecarboxylique et son procédé de production

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专利权人:

Teijin Limited

发明人:

申请号：

EP08005934.8

公开号：

EP1956015B2

申请日:

1999.06.18

申请国别(地区):

EP

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.

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中国工程科技知识中心

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