Methyl 5-chloro-2-(difluoromethyl)-3-iodopyridine-4-carboxylate
3-Bromo-5-(bromomethyl)-6-(difluoromethyl)pyridine-2-carboxaldehyde
Methyl 3-chloro-4-(difluoromethyl)-2-iodopyridine-5-carboxylate
Methyl 3-bromo-5-(bromomethyl)-2-(difluoromethyl)pyridine-4-carboxylate