Methyl 3-(chloromethyl)-2-(difluoromethyl)-6-(trifluoromethyl)pyridine-4-acetate
Methyl 3-(chloromethyl)-2-(difluoromethyl)-5-(trifluoromethyl)pyridine-4-acetate
Methyl 3-(chloromethyl)-2-(difluoromethyl)-4-(trifluoromethyl)pyridine-5-acetate
Methyl 2-(chloromethyl)-6-(difluoromethyl)-5-(trifluoromethyl)pyridine-3-acetate