Methyl 3-(chloromethyl)-2-(difluoromethyl)-6-methoxypyridine-5-acetate
Methyl 4-(difluoromethyl)-6-methoxy-3-nitropyridine-2-acetate
Methyl 3-(chloromethyl)-2-(difluoromethyl)-5-methoxypyridine-6-acetate
Methyl 4-(difluoromethyl)-2-methoxy-3-nitropyridine-6-acetate