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