[{"from": "human", "value": "Describe this molecule. [C][C][O][C][=Branch1][C][=O][N][P][=Branch1][C][=O][Branch1][#Branch2][N][C][C][Ring1][Ring1][Branch1][C][C][C][N][C][C][Ring1][Ring1][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is an aziridine alkylating agent that cross-links with DNA, causing inhibition of DNA synthesis. It was studied for use in colon cancer. (NCI)"}]