2-Chloro-3-hydroxy-5-(trifluoromethoxy)pyridine-4-carboxaldehyde
3-(Chloromethyl)-2-cyano-4-hydroxy-6-(trifluoromethoxy)pyridine
2-(Chloromethyl)-6-cyano-5-hydroxy-3-(trifluoromethoxy)pyridine
4-Chloro-5-methyl-3-(trifluoromethoxy)pyridine-2-methanol