5-Cyano-2-methoxy-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
4-Cyano-5-methoxy-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
3-Cyano-2-methyl-6-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
4-Cyano-5-methoxy-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine