Methyl 3-(bromomethyl)-4-(difluoromethyl)-6-fluoropyridine-2-acetate
Methyl 3-(bromomethyl)-4-(difluoromethyl)-2-fluoropyridine-6-acetate
Ethyl 2-(difluoromethyl)-3-hydroxy-4-iodopyridine-5-carboxylate
Methyl 2-(bromomethyl)-4-(difluoromethyl)-6-fluoropyridine-3-acetate