Methyl 2-(bromomethyl)-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-5-acetate
4-(Bromomethyl)-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-acetonitrile
3-(Chloromethyl)-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-4-acetic acid
6-(Chloromethyl)-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetic acid