3-Chloro-2-nitro-5-(trifluoromethoxy)pyridine-6-sulfonyl chloride
4-Cyano-2-hydroxy-3-nitro-6-(trifluoromethoxy)pyridine
2-Chloro-3-nitro-5-(trifluoromethoxy)pyridine-6-acetic acid
3-Cyano-5-hydroxy-6-nitro-2-(trifluoromethoxy)pyridine
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