2-Bromo-3-(chloromethyl)-6-(difluoromethyl)pyridine
4-(Chloromethyl)-2-cyano-5-(difluoromethyl)-3-hydroxypyridine
4-(Difluoromethyl)-2-nitro-3-(trifluoromethyl)pyridine-6-sulfonyl chloride
2-Fluoropyridine hydrochloride
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