Methyl 4-cyano-6-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxylate
4-Chloro-3-(difluoromethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine
Methyl 4-cyano-2-hydroxy-3-(trifluoromethoxy)pyridine-5-carboxylate
4-Chloro-6-(difluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine