Methyl 5-fluoro-2-nitro-4-(trifluoromethoxy)pyridine-3-acetate
Methyl 4-cyano-3-nitro-5-(trifluoromethoxy)pyridine-2-acetate
Ethyl 3-cyano-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-4-acetate
3-Nitro-4-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-2-methanol