4-Chloro-2-nitro-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
5-Chloro-4-methyl-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
3-Chloro-4-methyl-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
5-Chloro-3-nitro-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine