5-(4-tert-butyl-benzenesulfonylamino)-3-(2-methylphenyl)-1H-indol-2-carboxylic acid ethyl ester 、
sodium hydroxide 以
water ethanol 为溶剂,
以the product 5-(4-tert-butylbenzenesulfonylamino)-3-(2-methylphenyl)-1H-indole-2-carboxylic acid is obtained in a quantitative yield的产率得到5-(4-tert-butyl-benzenesulfonylamino)-3-(2-methylphenyl)-1H-indol-2-carboxylic acid