[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][=N][C][=C][Branch1][Branch2][C][=Branch1][C][=O][N][Ring1][#Branch1][N][=C][N][Ring1][Branch2][C@@H1][Branch1][Ring1][C][=O][O][C@H1][Branch1][Ring1][C][O][C][=O]"}, {"from": "gpt", "value": "The molecule is a toxic purine analogue. Inosine dialdehyde inhibits ribonucleotide reductase, resulting in decreased synthesis of DNA, RNA, and proteins, and G2/M-phase cell cycle arrest.  This agent also forms stable covalent crosslinks in proteins, thereby inhibiting the activity of enzymes involved in nucleic acid synthesis. (NCI04)"}]