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