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