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