5-(Bromomethyl)-2-hydroxy-4-nitro-3-(trifluoromethoxy)pyridine
3-Hydroxy-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-6-carboxylic acid
4-(Bromomethyl)-5-hydroxy-2-nitro-3-(trifluoromethoxy)pyridine
3-Iodo-2-methyl-5-(trifluoromethoxy)-6-(trifluoromethyl)pyridine