4-[2-[4-[1-(4-isobutylphenyl)ethoxy]-2,3-dimethyl-N-benzoyloxy]carbamimidoylphenoxy]butanoic acid ethyl ester 以
二乙二醇二甲醚 为溶剂,
反应 10.0h,
以95%的产率得到4-[2-[5-[4-[1-(4-isobutylphenyl)ethoxy]-2,3-dimethylphenyl]-[1,2,4]oxadiazol-3-yl]phenoxy]butanoic acid ethyl ester