Methyl 5-fluoro-2-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxylate
2-Fluoro-5-hydroxy-4-nitro-3-(trifluoromethoxy)pyridine
3-Fluoro-5-methyl-2-(trifluoromethoxy)pyridine-6-acetic acid
Methyl 4-fluoro-5-hydroxy-2-(trifluoromethoxy)pyridine-3-carboxylate