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