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