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Cristaux de (S)-N-[2-(2,6,7,8-Tetrahydro-1H-indeno[5,4-b]furan-8-yl)ethyle]propionamide
专利权人:
Takeda Pharmaceutical Company Limited
发明人:
申请号:
EP12182935.2
公开号:
EP2537842A1
申请日:
2005.09.12
申请国别(地区):
EP
年份:
2012
代理人:
摘要:
An industrial process for production of high-purity optically active amine derivatives in high yield while inhibiting the formation of by-products, which comprises subjecting (E)-2-(1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-ylidene)ethylamine to asymmetric reduction, catalytically reducing the obtained product at a reaction temperature of 40 to 100°C and a pH of 3 to 9, subjecting the obtained (S)-2-(1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethylamine to propionylation, and then crystallizing the reaction mixture.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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