Ethyl 5-bromo-2-(chloromethyl)-4-(difluoromethyl)pyridine-3-acetate
Ethyl 5-bromo-2-(chloromethyl)-3-(difluoromethyl)pyridine-4-acetate
Ethyl 4-bromo-3-(chloromethyl)-6-(difluoromethyl)pyridine-2-acetate
5-Bromo-4-(difluoromethyl)-2-methylpyridine-3-carboxylic acid