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