Ethyl 3-bromo-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-5-carboxylate
5-Chloro-4-(chloromethyl)-3-cyano-2-(trifluoromethoxy)pyridine
Methyl 2-bromo-3-(fluoromethyl)-4-(trifluoromethoxy)pyridine-6-carboxylate
3-Chloro-2-(chloromethyl)-5-cyano-6-(trifluoromethoxy)pyridine