METHOD FOR PRODUCING 5-(DIFLUOROMETHYL)PYRAZINE-2-CARBOXILIC ACID AND PRODUCTION INTERMEDIATE THEREOF
摘要
<p>5-(Difluoromethyl)pyrazine-2-carboxilic acid, which is a raw material for the construction of 5-(difluoromethyl)pyrazine-2-carboxamide, which is a common partial structural motif of the compound having an A production inhibitory action or a BACE1 inhibitory action, can be industrially advantageously produced by decarboxylating 5-[carboxy(difluoro)methyl]pyrazine-2-carboxylic acid, which is obtainable from 5-chloropyrazine-2-carboxylate.</p>
申请公布号
EP2841423(A1)
申请公布日期
2015.03.04
申请号
EP20130781634
申请日期
2013.04.25
申请人
EISAI R&D MANAGEMENT CO., LTD.
发明人
YOSHIZAWA, KAZUHIRO;OMORI, MASAYUKI;WATANABE, YUZO;NAGAI, MITSUO;TAKAHASHI, MASABUMI;FANG, FRANCIS, G.