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