6-chloro-N-(4-methoxyphenyl)-2-oxo-2H-chromene-3-sulfonamide 、 8-ethoxy-N-(4-methoxyphenyl)-2-oxo-2H-chromene-3-sulfonamide 、
6-chloro-N-(3-hydroxy-4-methoxyphenyl)-2-oxo-2H-chromene-3-sulfonamide 、 N-(3-amino-4-fluorophenyl)-4-ethoxy-2-oxo-2Hchromene-3-sulfonamide 、 N-(3-amino-4-fluorophenyl)-6-methoxy-2-oxo-2H-chromene-3-sulfonamide 、 N-(4-bromophenyl)-6-methoxy-2-oxo-2H-chromene-3-sulfonamide 、
N-(4-bromophenyl)-8-chloro-2-oxo-2H-chromene-3-sulfonamide 、 N-(4-bromophenyl)-8-bromo-2-oxo-2H-chromene-3-sulfonamide 生成 6-bromo-N-(4-methoxyphenyl)-2-oxo-2H-chromene-3-sulfonamide