5-(Difluoromethyl)-2-hydroxy-3-nitropyridine-4-acetic acid
4-Hydroxy-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
Methyl 4-(chloromethyl)-6-cyano-3-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 6-bromo-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-4-carboxylate