4-Cyano-5-methoxy-3-(trifluoromethoxy)pyridine-2-carbonyl chloride
4-Cyano-3-methoxy-2-(trifluoromethoxy)pyridine-6-carbonyl chloride
3-Cyano-2-iodo-6-(trifluoromethoxy)pyridine-5-carbonyl chloride
4-Cyano-6-methoxy-3-(trifluoromethoxy)pyridine-2-carbonyl chloride