2,6-二氯-5-氟吡啶-3-羧酸乙酯

methyl 2,6-dihydroxy-5-fluoronicotinate

3-氰基-2,6-二氯-5-氟吡啶

2,6-二氯-3-甲酰胺-5-氟吡啶

2,6-dichloro-5-fluoro-3-trichloromethyl-pyridine