2-oxo-3-(piperidin-4-yl)-2,3-dihydro-1H-benzo[d]imidazole-5-carbonitrile 、
4-三氟甲基苯乙酸 在
N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以60%的产率得到2-oxo-3-(1-(2-(4-(trifluoromethyl)phenyl)acetyl)piperidin-4-yl)-2,3-dihydro-1H-benzo[d]imidazole-5-carbonitrile