2-羟基-6-甲氧基喹啉-4-羧酸

6-甲氧基-4-羧酸喹啉

N-甲基-4-氨基苯甲醚

ethyl 6-methoxy-2-oxo-1H-quinoline-4-carboxylate

ethyl 2-chloro-6-methoxyquinoline-4-carboxylate