3-Cyano-2-methoxy-6-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-Cyano-3-hydroxy-5-(trifluoromethoxy)pyridine-6-carboxaldehyde
3-Cyano-2-(difluoromethyl)-5-hydroxy-6-(trifluoromethoxy)pyridine
3-Cyano-2-(difluoromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine