Methyl 3-(difluoromethyl)-6-fluoro-2-(trifluoromethoxy)pyridine-5-acetate
Methyl 5-(difluoromethyl)-2-fluoro-3-(trifluoromethoxy)pyridine-6-acetate
2-Hydroxy-4-iodo-5-methoxy-3-(trifluoromethoxy)pyridine
Methyl 4-(difluoromethyl)-3-fluoro-2-(trifluoromethoxy)pyridine-6-acetate