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
2-Chloro-3-cyano-6-(difluoromethyl)-5-(trifluoromethoxy)pyridine