4-(2-carbamoyl-4-(4-(2-fluoroacryloylamido)-2-methylphenyl)-5-methyl-1H-pyrrole-3-yl)-2-methoxybenzoic acid 、
[1-(difluoromethyl)cyclopropyl]methanamine hydrochloride 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以31 %的产率得到