rac-N2-methyl-N2-(1-methyl-piperidin-4-yl)-benzooxazole-2,5-diamine 、
5-氯吡嗪-2-羧酸 在
4-二甲氨基吡啶 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
乙腈 为溶剂,
生成 5-chloro-pyrazine-2-carboxylic acid {2-[methyl-(1-methyl-piperidin-4-yl)-amino]-benzooxazol-5-yl}-amide