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