6-Methyl-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine
3-Iodo-1H-pyrrolo[3,2-b]pyridine-7-carbonitrile
4-Chloro-1H-pyrrolo[2,3-b]pyridine-6-carbonitrile
5-Chlorofuro[3,2-b]pyridine
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