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