5-Bromo-2-fluoro-3-mercaptopyridine
2,6-Dimethoxy-3-(trifluoromethoxy)pyridine-5-sulfonyl chloride
3-(Bromomethyl)-5-fluoro-6-(trifluoromethoxy)pyridine-2-methanol
4-Fluoro-2-iodo-5-(methylthio)pyridine
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