ethyl 1-ethyl-2-oxo-1,2-dihydroquinoline-3-carboxylate

10-ethyl-3-methylpyrimido[4,5-b]quinoline-2,4-dione

2-氧代-1,2-二氢喹啉-3-羧酸乙酯

2-[(2-硝基苯基)亚甲基]丙二酸二乙基酯

邻硝基苯甲醛