Methyl 6-(aminomethyl)-3-(difluoromethyl)-2-fluoropyridine-4-carboxylate
Methyl 5-(chloromethyl)-3-(difluoromethyl)-2-fluoropyridine-4-acetate
Methyl 2-(aminomethyl)-3-(difluoromethyl)-4-fluoropyridine-6-carboxylate
Methyl 2-(chloromethyl)-5-(difluoromethyl)-6-fluoropyridine-3-acetate