4-(5-chloro-2-methoxy-benzenesulfonyl)-6-(4-ethoxycarbonyl-phenylcarbamoyl)-3,4-dihydro-2H-quinoxaline-1-carboxylic acid tert-butyl ester 在
二氯甲烷 作用下,
以
三氟乙酸 为溶剂,
反应 2.0h,
以4-{[4-(5-Chloro-2-methoxy-benzenesulfonyl)-1,2,3,4-tetrahydro-quinoxaline-6-carbonyl]-amino}-benzoic acid ethyl ester was obtained as a white solid, 61 mg (76%), MS (ISP)的产率得到4-{[4-(5-chloro-2-methoxy-benzenesulfonyl)-1,2,3,4-tetrahydro-quinoxaline-6-carbonyl]-amino}-benzoic acid ethyl ester