Ethyl 4-fluoro-6-hydroxy-2-(trifluoromethoxy)pyridine-3-acetate
Ethyl 3-fluoro-6-methyl-2-(trifluoromethoxy)pyridine-4-acetate
3-Fluoro-5-(difluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine
5-Fluoro-4-(difluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine