Methyl 6-bromo-3-cyano-4-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 2-bromo-5-cyano-3-(trifluoromethoxy)pyridine-4-carboxylate
2-Bromo-5-(difluoromethyl)-6-iodo-3-(trifluoromethoxy)pyridine
5-Bromo-3-chloro-4-(trifluoromethoxy)pyridine-2-carboxylic acid