Methyl 3-cyano-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-carboxylate
5-Amino-4-bromo-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
Ethyl 3-amino-2-(difluoromethyl)-5-iodopyridine-6-carboxylate
2-(Difluoromethyl)-6-hydroxy-3-methylpyridine-5-carboxamide