tert-butyl 2-((2-chloro-5-(N-cyclopropylsulfamoyl)benzoyl)carbamoyl)-2-(3-methoxy-4-(methoxycarbonyl)phenyl)hydrazinecarboxylate 、
三氟乙酸 在
methyl 4-(3-(2-chloro-5-(N-cyclopropylsulfamoyl)phenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)-2-methoxybenzoate 作用下,
以
二氯甲烷 为溶剂,
以to afford 0.100 g of the desired product的产率得到methyl 4-(3-(2-chloro-5-(N-cyclopropylsulfamoyl)phenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)-2-methoxybenzoate