9-chlorochromeno[4,3-b]quinolin-6-one

4-羟基-2-氧代-2H-色烯-3-甲醛

10-methylchromeno[4,3-b]quinolin-6-one

1,3-dimethylchromeno[4,3-b]pyrrol-4-one

4-(butylamino)-2-oxochromene-3-carbaldehyde