4-Cyano-2-methoxy-3-nitro-5-(trifluoromethoxy)pyridine
5-Cyano-4-iodo-2-(trifluoromethoxy)pyridine-3-sulfonamide
3-Cyano-4-methoxy-2-nitro-5-(trifluoromethoxy)pyridine
6-Cyano-4-iodo-2-(trifluoromethoxy)pyridine-3-sulfonamide
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