3-(Fluoromethyl)-5-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
Methyl 3-(chloromethyl)-5-cyano-4-(trifluoromethoxy)pyridine-2-carboxylate
5-(Difluoromethyl)-4-hydroxy-3-iodopyridine-2-sulfonyl chloride
5-Amino-4-(chloromethyl)-2-(difluoromethyl)pyridine-3-acetic acid