4-(Bromomethyl)-3-hydroxy-2-methyl-5-(trifluoromethoxy)pyridine
4-(Bromomethyl)-6-hydroxy-3-methyl-2-(trifluoromethoxy)pyridine
4-(Bromomethyl)-2-hydroxy-3-methyl-5-(trifluoromethoxy)pyridine
5-Fluoro-3-nitro-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride