Methyl 5-bromo-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 3-bromo-4-(difluoromethyl)-5-(trifluoromethoxy)pyridine-2-carboxylate
3-Cyano-2-hydroxy-6-methoxy-5-(trifluoromethoxy)pyridine
3-Chloro-4-cyano-2-nitro-6-(trifluoromethoxy)pyridine