2-Chloro-5-(difluoromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine
4-Chloro-6-hydroxy-2-(trifluoromethoxy)pyridine-3-carboxylic acid
5-Cyano-2-methyl-4-nitro-3-(trifluoromethoxy)pyridine
6-Chloro-4-(difluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine