2-Fluoro-5-(fluoromethyl)-4-iodo-3-(trifluoromethoxy)pyridine
3-(Chloromethyl)-2-cyano-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine
6-Fluoro-4-(fluoromethyl)-2-iodo-3-(trifluoromethoxy)pyridine
2-(Chloromethyl)-6-cyano-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine