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2-Chloro-5-(chloromethyl)pyridine Flupirtine Epichlorohydrin Clopidol Pentachloropyridine 2-chloro-5-cyanopyridine 3-Bromo-6-chloro-2-methylpyridine 5-Bromo-2-chloropyridine 6-Chloro-2-methyl-3-nitropyridine 2-Chloro-5-hydroxypyridine