5-[(4-Hydroxy-phenylamino)-methylene]-2,2-dimethyl-[1,3]dioxane-4,6-dione

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

4-氯-6-甲氧基喹啉

6-羟基-4-氧代-1H-喹啉-2-羧酸

5-hydroxykynurenine