N-[2-(3,4-dihydroxyphenyl)-3-hydroxy-4-oxo-4H-chromen-6-yl]-4-(4-methyl-1-piperazinyl)-3-nitrobenzenesulfonamide 在
palladium-carbon 氢气 作用下,
以
甲醇 为溶剂,
以67.5%的产率得到3-amino-N-[2-(3,4-dihydroxyphenyl)-3-hydroxy-4-oxo-4H-chromen-6-yl]-4-(4-methyl-1-piperazinyl)benzenesulfonamide