Methyl 5-cyano-3-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxylate
5-Chloro-3-(difluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine
3-Chloro-5-(difluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine
5-Chloro-2-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxylic acid