5-Cyano-2-(difluoromethyl)-3-nitropyridine-6-sulfonamide
3,4-Diamino-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride
2-Bromo-3-nitro-6-(trifluoromethoxy)pyridine-5-carboxaldehyde
3-Cyano-4-methoxy-2-(trifluoromethoxy)pyridine-6-acetic acid
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