PROCESS FOR THE CRYSTALLIZATION OF (R)- OR (S)-LANSOPRAZOLE

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专利权人:

TAKEDA PHARMACEUTICAL COMPANY LIMITED

发明人:

HASHIMOTO, HIDEO,URAI, TADASHI

申请号：

HU0400781

公开号：

HU229356B1

申请日:

2001.11.30

申请国别(地区):

HU

年份:

2013

代理人:

摘要：

The present invention relates to a production method of a crystal of (R)-lansoprazole or (S)-lansoprazole, which includes crystallization at a temperature of about 0°C to about 35°C from a C1-4 alkyl acetate solution containing (R)-lansoprazole or (S)-lansoprazole at a concentration of about 0.1 g/mL to about 0.5 g/mL and the like. According to the production method of the present invention, a crystal of (R)-lansoprazole or (S)-lansoprazole superior in preservation stability can be produced efficiently on an industrial large scale.

来源网站：

中国工程科技知识中心

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