5-(2,4-bis(benzyloxy)-5-isopropylphenyl)-N-ethyl-4-(N'-hydroxycarbamimidoyl)isoxazole-3-carboxamide 、
2-过氧乙酰丙酰氯 以to afford the intermediate compound (S)-1-(3-(5-(2,4-bis(benzyloxy)-5-isopropylphenyl)-3-(ethylcarbamoyl)isoxazol-4-yl)-1,2,4-oxadiazol-5-yl)ethyl acetate (69 mg, 0.11 mmol) in a yield of 58%的产率得到(S)-1-(3-(5-(2,4-bis(benzyloxy)-5-isopropylphenyl)-3-(ethylcarbamoyl)isoxazol-4-yl)-1,2,4-oxadiazol-5-yl)ethyl acetate