[{"from": "human", "value": "Provide a brief overview 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 bearing an aminomethyl substituent at the 7 position. It is a conjugate base of a 7-ammoniomethyl-7-deazaguanine."}]