3-氯-1H-吲哚-2-甲醛

6-chloro-2-fluoropyridine-3-carbaldehyde

4-溴-3-甲酰基-1H-吲哚-2-羧酸甲酯

呋喃并[3,2-b]吡啶-2-羧醛

6-氯-4-氟烟醛