5-(Bromomethyl)-4-cyano-3-hydroxy-2-(trifluoromethoxy)pyridine
5-(Difluoromethyl)-3-fluoro-4-methyl-2-(trifluoromethoxy)pyridine
3-(Bromomethyl)-2-cyano-4-nitro-6-(trifluoromethoxy)pyridine
6-(Bromomethyl)-3-cyano-2-nitro-4-(trifluoromethoxy)pyridine