6-(Difluoromethyl)-3-nitro-2-(trifluoromethoxy)pyridine-4-acetic acid
5-(Bromomethyl)-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-4-acetonitrile
2-(Difluoromethyl)-6-nitro-4-(trifluoromethoxy)pyridine-3-acetic acid
4-(Bromomethyl)-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-acetonitrile