3-hydroxy-5-methyl-3-(2-oxo-2-pyridin-2-ylethyl)-1H-indol-2-one

5-methyl-11H-indolo[3,2-c]quinolin-6-one

3-hydroxy-5-methyl-3-(4-methylphenyl)-1H-indol-2-one

3-hydroxy-5-methyl-1,3-dihydroindol-2-one

2-氯-6-甲基-喹啉-4-羧酸