2-cyano-4-methyl-pent-2-enoic acid 、
(R)-5-(difluoromethyl)-N-(1-(pyrrolidin-3-yl)-1H-benzo[d]imidazol-2-yl)thiophene-2-carboxamide 在
三乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以173 mg的产率得到(R)-N-(1-(1-(2-cyano-4-methylpent-2-enoyl)pyrrolidin-3-yl)-1H-benzo[d]imidazol-2-yl)-5-(difluoromethyl)thiophene-2-carboxamide