6-Cyano-4-(difluoromethyl)-2-fluoro-3-(trifluoromethoxy)pyridine
3-Chloro-2-methoxy-5-methyl-6-(trifluoromethoxy)pyridine
2-Cyano-4-(difluoromethyl)-5-fluoro-3-(trifluoromethoxy)pyridine
2-Cyano-3-(difluoromethyl)-6-fluoro-5-(trifluoromethoxy)pyridine