Methyl 3-bromo-2-(difluoromethyl)-6-fluoropyridine-5-carboxylate
Methyl 3-bromo-2-(difluoromethyl)-5-fluoropyridine-6-carboxylate
Methyl 2-bromo-3-cyano-5-(difluoromethyl)pyridine-4-acetate
Methyl 3-bromo-2-(difluoromethyl)-4-fluoropyridine-6-carboxylate