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