3-(Fluoromethyl)-2-methyl-4-nitro-5-(trifluoromethoxy)pyridine
6-(Fluoromethyl)-4-methyl-3-nitro-2-(trifluoromethoxy)pyridine
2-(Fluoromethyl)-3-methyl-4-nitro-5-(trifluoromethoxy)pyridine
2-Methyl-6-nitro-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine