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