Ethyl 4-bromo-6-(chloromethyl)-3-(difluoromethyl)pyridine-2-carboxylate
3-Bromo-5-(difluoromethyl)-2-(trifluoromethyl)pyridine-4-acetic acid
Ethyl 4-bromo-2-(chloromethyl)-3-(difluoromethyl)pyridine-6-carboxylate
3-Bromo-4-(difluoromethyl)-6-(trifluoromethyl)pyridine-2-acetic acid