4-(N-hydroxycarbamimidoyl)-benzoic acid

三氟乙酸酐

methyl 4-(5-trifluoromethyl-1,2,4-oxadiazol-3-yl)benzoate

对氰基苯甲酸甲酯

4-[(z)-氨基(羟基亚氨基)甲基]苯甲酸甲酯