3-Fluoro-2-iodo-4-(trifluoromethoxy)pyridine-5-sulfonamide
5-Chloro-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylic acid
4-Chloro-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylic acid
2-(Chloromethyl)-3-cyano-4-(trifluoromethoxy)pyridine-5-carboxylic acid