9-heptylcarbazole-3,6-dicarbaldehyde

7-羟基-4-甲基-2-氧代-2H-色烯-8-甲醛

2-氯-3-氰基-4,5-二甲基吡啶

5-溴-6-甲基吡啶-2-甲醛

methyl 6-methyl-4-oxochromene-3-carboxylate