发明名称 |
POLYMORPHIC MODIFICATIONS OF 2-(3-CYANO-4-ISOBUTYLOXYPHENYL)-4-METHYL-5-THIAZOLE-CARBOXYLIC ACID AND PROCESSES FOR THE PREPARATION THEREOF |
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. |
申请公布号 |
HRP20000092(A2) |
申请公布日期 |
2000.08.31 |
申请号 |
HR2000P000092 |
申请日期 |
2000.02.18 |
申请人 |
TEIJIN LIMITED |
发明人 |
KOICHI MATSUMOTO;KENZO WATANABE;TOSHIYUKI HIRAMATSU;MITSUTAKA KITAMURA |
分类号 |
C07D277/56;(IPC1-7):C07D277/56 |
主分类号 |
C07D277/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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