2-Cyano-3-fluoro-6-(trifluoromethoxy)pyridine-4-sulfonyl chloride
4-Cyano-2-methoxy-6-nitro-3-(trifluoromethoxy)pyridine
4-Cyano-2-methoxy-3-nitro-6-(trifluoromethoxy)pyridine
3-Cyano-5-methoxy-6-nitro-2-(trifluoromethoxy)pyridine
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