Methyl 6-fluoro-3-nitro-2-(trifluoromethoxy)pyridine-4-acetate
4-(Difluoromethyl)-6-fluoro-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
Methyl 2-fluoro-5-nitro-3-(trifluoromethoxy)pyridine-6-acetate
4-(Difluoromethyl)-2-fluoro-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine