Methyl 3-cyano-2-hydroxy-4-(trifluoromethoxy)pyridine-6-carboxylate
4-Fluoro-6-hydroxy-2-methoxy-3-(trifluoromethoxy)pyridine
3-Fluoro-5-hydroxy-4-methoxy-2-(trifluoromethoxy)pyridine
Methyl 2-cyano-6-hydroxy-3-(trifluoromethoxy)pyridine-5-carboxylate