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