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