3-Chloro-5-(chloromethyl)-4-nitro-2-(trifluoromethoxy)pyridine
5-Chloro-4-(chloromethyl)-2-nitro-3-(trifluoromethoxy)pyridine
4-Chloro-3-hydroxy-2-(trifluoromethoxy)pyridine-6-acetic acid
3-Chloro-4-(chloromethyl)-5-nitro-2-(trifluoromethoxy)pyridine