Methyl 5-bromo-4-(bromomethyl)-2-(difluoromethyl)pyridine-3-acetate
Ethyl 3-bromo-5-(difluoromethyl)-6-methylpyridine-2-carboxylate
Methyl 5-bromo-4-(bromomethyl)-3-(difluoromethyl)pyridine-2-acetate
Ethyl 3-bromo-5-(difluoromethyl)-4-methylpyridine-2-carboxylate