3-isopropyl-2-oxo-N-(piperidin-4-ylmethyl)-2,3-dihydro-1H-benzimidazole-1-carboxamide 、
3'-氯-4-氟苯丙酮 以instead of 3-cyclopropyl-2-oxo-2,3-dihydro-benzimidazole-1-carboxylic acid (piperidin-4-ylmethyl)-amide and 3-chloropropiophenone, to give the title compound的产率得到3-cyclopropyl-2-oxo-2,3-dihydro-benzimidazole-1-carboxylic acid (piperidin-4-ylmethyl)-amide