ethyl 4-hydroxy-1-nonyl-2-oxo-1,2-dihydroquinoline-3-carboxylate

2,4-二羟基喹啉-3-甲酸乙酯

2-oxo-3-ethoxycarbonyl-4-acetoxyquinoline

邻氨基苯甲酸甲酯

丙二酸二乙酯