5-Bromo-3-(difluoromethyl)pyridine-2-sulfonamide
3-(Difluoromethyl)-2-nitro-5-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
5-Bromo-2-fluoro-3-mercaptopyridine
2,6-Dimethoxy-3-(trifluoromethoxy)pyridine-5-sulfonyl chloride
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