5-(2,4-bis(benzyloxy)-5-isopropylphenyl)-N-ethyl-4-(1H-tetrazol-5-yl)isoxazole-3-carboxamide 、
碘甲烷 以to afford the intermediate compound 5-(2,4-bis(benzyloxy)-5-isopropylphenyl)-N-ethyl-4-(2-methyl-2H-tetrazol-5-yl) isoxazole-3-carboxamide (446 mg, 0.81 mmol) in a yield of 48%的产率得到5-(2,4-bis(benzyloxy)-5-isopropylphenyl)-N-ethyl-4-(2-methyl-2H-tetrazol-5-yl)isoxazole-3-carboxamide