(R)-N-(1-((1-(2-cyano-4-methylpent-2-enoyl)pyrrolidin-2-yl)methyl)-1H-benzo[d]imidazol-2-yl)-5-(difluoromethyl)thiophene-2-carboxamide trifluoroacetate 、
2-cyano-4-methyl-pent-2-enoic acid 以to afford (R)—N-(1-((1-(2-cyano-4-methylpent-2-enoyl)pyrrolidin-2-yl)methyl)-1H-benzo[d]imidazol-2-yl)isoxazole-5-carboxamide的产率得到(R)-N-(1-((1-(2-cyano-4-methylpent-2-enoyl)pyrrolidin-2-yl)methyl)-1H-benzo[d]imidazol-2-yl)isoxazole-5-carboxamide