5-(Difluoromethyl)pyrazine-2-carboxylic 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 Aβ 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.
5-(二
氟甲基)
吡咯烷-2-
羧酸是构建5-(二
氟甲基)
吡咯烷-2-羧酰胺的原材料,该胺是具有Aβ产生抑制作用或
BACE1抑制作用的化合物常见的部分结构基团。该化合物可以通过脱羧5-[羧基(二
氟甲基)甲基]
吡咯烷-2-
羧酸来工业上优势生产,该化合物可从5-
氯吡咯烷-2-
羧酸酯中获得。