Ethyl 5-fluoro-3-hydroxy-2-(trifluoromethoxy)pyridine-4-acetate
3-Fluoro-4-(difluoromethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine
Ethyl 5-fluoro-2-methyl-4-(trifluoromethoxy)pyridine-3-acetate
Ethyl 3-fluoro-5-hydroxy-4-(trifluoromethoxy)pyridine-2-acetate