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