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