[{"from": "human", "value": "Provide a description of this molecule. [C][=C][Branch2][Ring1][C][C][=C][Branch1][Ring2][N][Ring1][Branch1][N][=C][Branch1][=Branch1][N][C][Ring1][#Branch1][=O][N][C][#N]"}, {"from": "gpt", "value": "The molecule is a pyrrolopyrimidine that is 7-deazaguanine substituted at position 7 by a cyano group. It has a role as an Escherichia coli metabolite. It is a pyrrolopyrimidine and a nitrile. It is functionally related to a 7-carboxy-7-deazaguanine."}]