4-ethoxy-5-ethyl-2,4-dihydro-3H-1,2,4-triazol-3-one 、
methyl 4-(3-bromomethyl-5-trifluoromethyl-benzoyl)-5-cyclopropyl-isoxazole-3-carboxylate 在
sodium hydride 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 0.5h,
以96%的产率得到(5-cyclopropyl-3-methoxycarbonyl-isoxazol-4-yl)-[2-(4-ethoxy-3-ethyl-5-oxo-4,5-dihydro-[1,2,4]-triazol-1-yl-methyl)-4-trifluoromethyl-phenyl]-methanone