METHOD FOR THE PREPARATION OF (4S)-4-(4-CYANO-2-METHOXYPHENYL)-5-ETHOXY-2,8-DIMETHYL-1,4-DIHYDRO-1-6-NAPHTHYRIDINE-3-CARBOXAMIDE AND THE PURIFICATION THEREOF FOR USE AS AN ACTIVE PHARMACEUTICAL INGREDIENT

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专利权人:

Bayer Pharma Aktiengesellschaft

发明人:

PLATZEK, Johannes

申请号：

SG11201801110T

公开号：

SG11201801110TA

申请日:

2016.08.18

申请国别(地区):

SG

年份:

2018

代理人:

摘要：

The present invention relates to a novel and improved method for the preparation of (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1-6-naphthyridine-3-carboxamide of the formula (I) and of a crystalline modification of said compound.

来源网站：

中国工程科技知识中心

来源网址：

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