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
6-Bromo-4-(chloromethyl)-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine