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