6-(Bromomethyl)-2-methoxy-3-nitro-4-(trifluoromethoxy)pyridine
2-(Bromomethyl)-6-methoxy-4-nitro-3-(trifluoromethoxy)pyridine
2-(Bromomethyl)-5-methoxy-6-nitro-3-(trifluoromethoxy)pyridine
3-Methoxy-2-methyl-4-(trifluoromethoxy)pyridine-5-carboxylic acid