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