5-Chloro-4-(fluoromethyl)-3-nitro-2-(trifluoromethoxy)pyridine
4-Chloro-5-fluoro-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine
3-Chloro-4-(fluoromethyl)-2-nitro-5-(trifluoromethoxy)pyridine
4-Chloro-3-fluoro-5-(fluoromethyl)-2-(trifluoromethoxy)pyridine