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.
5-(二
氟甲基)
吡嗪-2-
羧酸是5-(二
氟甲基)
吡嗪-2-羧酰胺的原材料,后者是一种具有A产生抑制作用或
BACE1抑制作用的化合物的常见部分结构基团。该化合物可以通过脱羧5-[羧基(二
氟甲基)甲基]
吡嗪-2-
羧酸来工业优势生产,后者可以从
5-氯吡嗪-2-羧酸酯获得。