Ethyl 2-chloro-4-(difluoromethyl)-6-fluoropyridine-3-carboxylate
Ethyl 2-chloro-4-(difluoromethyl)-5-fluoropyridine-3-carboxylate
Methyl 6-(aminomethyl)-2-bromo-3-(difluoromethyl)pyridine-4-carboxylate
Methyl 6-(aminomethyl)-2-bromo-4-(difluoromethyl)pyridine-3-carboxylate