Methyl 3-(difluoromethyl)-2-fluoro-6-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 3-(difluoromethyl)-2-fluoro-5-(trifluoromethoxy)pyridine-4-carboxylate
3-Hydroxy-5-methyl-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
Methyl 6-(difluoromethyl)-2-fluoro-3-(trifluoromethoxy)pyridine-4-carboxylate