2-Chloro-4-(chloromethyl)-3-cyano-5-(trifluoromethoxy)pyridine
2-Chloro-6-cyano-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine
6-Chloro-4-cyano-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine
3-Bromo-4-methyl-6-(trifluoromethoxy)pyridine-2-sulfonamide