Methyl 3-(chloromethyl)-2-(difluoromethyl)-6-methylpyridine-5-carboxylate
Methyl 3-(chloromethyl)-2-(difluoromethyl)-6-methylpyridine-4-carboxylate
Methyl 3-(chloromethyl)-2-(difluoromethyl)-5-methylpyridine-6-carboxylate
Methyl 3-(chloromethyl)-2-(difluoromethyl)-5-methylpyridine-4-carboxylate