[{"from": "human", "value": "Please give me some details about this molecule. [C][N][C][=C][Branch2][Branch1][Branch1][C][=C][Ring1][Branch1][C][=Branch1][C][=O][N][C][=C][N][Branch2][Ring2][Branch1][C][=Branch1][Ring2][=C][Ring1][Branch1][C][=Branch1][C][=O][N][C][=C][N][Branch2][Ring1][Ring1][C][=Branch1][Ring2][=C][Ring1][Branch1][C][=Branch1][C][=O][N][C][C][C][=Branch1][C][=N][N][C][C][N][C][=Branch1][C][=O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][Branch1][Ring2][C][C][Cl][C][C][Cl]"}, {"from": "gpt", "value": "The molecule is a benzoyl mustard derivative of the antiviral agent distamycin A with potential antineoplastic activity. Tallimustine selectively binds to A-T rich regions in the minor groove of DNA and alkylates at the N3 position of adenine in a highly sequence-specific manner. This prevents DNA replication, inhibits cellular proliferation and triggers apoptosis. Moreover, unlike other clinical nitrogen mustards, tallimustine does not carry out guanine-N7 alkylation in the major groove of DNA, which may lead to a high selectivity of action."}]