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