N-[3-cyano-4-(4-hydroxy-3-isopropyl-phenoxy)-5-methyl-phenyl]-oxamic acid ethyl ester 、
sodium hydroxide 在
乙酸乙酯 、 Brine 、
Sodium sulfate-III 作用下,
以
乙醇 为溶剂,
反应 0.17h,
以to afford the title compound as a colorless solid (9 mg)的产率得到N-[3-Cyano-4-(4-hydroxy-3-isopropyl-phenoxy)-5-methyl-phenyl]-oxamic acid