[{"from": "human", "value": "Provide a description of this molecule. [C][C][N][C][=Branch1][=Branch1][=C][C][=N][Ring1][Branch1][N][Ring1][Branch2]"}, {"from": "gpt", "value": "The molecule is a synthetic agent, also known as IMPY, with antineoplastic properties.  IMPY inhibits ribonucleotide reductase, an enzyme that converts ribonucleotides to deoxyribonucleotides during DNA synthesis; this agent specifically binds the smaller, nonheme-iron subunit of the enzyme. (NCI04)"}]