2-(邻甲苯氨基亚甲基)丙二酸二乙酯

diethyl 2-[(1,3-benzothiazol-2-ylamino)methylidene]propanedioate

((4-甲基-2-吡啶氨基)亚甲基)丙二酸二乙酯

2-{[(1,3-二甲基-1H-吡唑-5-基)氨基]亚甲基}丙二酸二乙酯

ethyl 8-iodo-4-oxo-1H-quinoline-3-carboxylate