5-(Chloromethyl)-2-cyano-3-(trifluoromethoxy)pyridine-4-acetic acid
Methyl 4-(difluoromethyl)-5-hydroxy-2-iodopyridine-3-carboxylate
2-Methyl-6-(trifluoromethoxy)pyridine-4-sulfonyl chloride
3-Bromo-2-chloro-4-(difluoromethyl)pyridine-6-sulfonyl chloride