6-Bromo-3-chloro-1H-pyrrolo[2,3-b]pyridine
5-Iodo-2,3-dihydropyridazin-3-one
3-Nitro-6-(trifluoromethyl)-1H-pyrrolo[3,2-b]pyridine
3-Chloro-4-methylpyridazine hydrochloride
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