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