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