4-羟基喹啉-3-甲酸乙酯

2-苯基氨基亚甲基-丙二酸二乙酯

1,4-二氢-4-氧代-3-喹啉羧酸乙酯

Methyl 4-oxo-1,4-dihydro-3-quinolinecarboxylate