4104-47-6
N-亚硫酰基-p-甲苯磺胺
+
552-89-6
邻硝基苯甲醛
→
~70%
14674-35-2
4-methyl-N-[(2-nitrophenyl)methylidene]benzenesulfonamide
70-55-3
对甲苯磺酰胺
~64%
261629-95-2
ethyl 1-hydroxy-4-oxoquinoline-3-carboxylate