[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][N][Ring1][Ring1][P][=Branch1][C][=O][Branch1][S][N][C][=Branch1][C][=O][O][C][C][=C][C][=C][C][=C][Ring1][=Branch1][N][C][C][Ring1][Ring1]"}, {"from": "gpt", "value": "The molecule is an aziridine alkylating agent that cross-links with DNA, causing inhibition of DNA synthesis. (NCI)"}]