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