2-氟-3-甲基-4-碘吡啶

4-(4-fluorophenyl)-1H-pyridin-2-one

3-benzyl-2-fluoro-4-iodopyridine

甲基4-(3-甲酰基苯基)-2-吡啶羧酸酯

2-chloro-3-(2-fluoropyridin-4-yl)pyridine