Methyl 2-nitro-4-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-3-acetate
3-Nitro-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-acetic acid
Methyl 2-nitro-4-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-3-acetate
Methyl 2-nitro-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-5-acetate