Methyl 2-(bromomethyl)-5-(difluoromethyl)-3-(trifluoromethyl)pyridine-4-carboxylate
Methyl 6-(bromomethyl)-4-(difluoromethyl)-2-(trifluoromethyl)pyridine-3-carboxylate
Methyl 3-(bromomethyl)-5-(difluoromethyl)-2-(trifluoromethyl)pyridine-6-carboxylate
Methyl 2-(bromomethyl)-4-(difluoromethyl)-6-(trifluoromethyl)pyridine-3-carboxylate