[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][N][Branch1][Ring1][C][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=C][Branch1][Ring2][O][Ring1][#Branch1][C][=Branch1][C][=O][N][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][C][=Branch1][Ring2][=C][Ring1][#Branch1][C][=Branch1][C][=O][N][C][C@H1][Branch2][Ring2][Ring2][C][=C][C][=Branch2][Ring1][=N][=C][N][C][Ring1][Branch1][=C][Branch1][#Branch1][C][=C][Ring1][=Branch2][Ring1][N][O][C][=Branch1][C][=O][N][C][=C][C][=C][C][=C][Ring1][=Branch1][C][C][Cl]"}, {"from": "gpt", "value": "The molecule is a cyclopropylpyrroloindole prodrug analogue and DNA minor groove binding agent, with antineoplastic activity.  After hydrolysis, the cyclopropyl group of carzelesin alkylates N3-adenine in a sequence-selective fashion. This results in tumor growth inhibition."}]