4-Bromo-3-nitro-5-(trifluoromethylthio)pyridine
5-Bromo-2-(trifluoromethyl)pyridine-3-acetonitrile
2-Bromo-6-nitropyridine-4-sulfonyl chloride
4-Bromo-3-(trifluoromethyl)pyridine-5-acetonitrile
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