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