[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][C@@H1][C][=Branch1][C][=O][N][Branch2][=Branch1][C][C][=C][N][=C][Branch1][=N][N][=C][Ring1][=Branch1][N][Ring1][O][C][Branch1][C][C][C][N][C][=C][Branch2][Ring2][Branch2][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][C][C][C][C][Branch1][Branch1][C][C][Ring1][=Branch1][N][C][C][N][Branch1][Branch1][C][C][Ring1][=Branch1][C][C][C][C][Ring1][Ring1][O][C][C]"}, {"from": "gpt", "value": "The molecule is a dihydropteridinone Polo-like kinase 1 (Plk1) inhibitor with potential antineoplastic activity. Volasertib selectively inhibits Plk1, inducing selective G2/M arrest followed by apoptosis in a variety of tumor cells while causing reversible cell arrest at the G1 and G2 stage without apoptosis in normal cells. Plk1, named after the polo gene of Drosophila melanogaster, is a serine/threonine protein kinase involved in regulating mitotic spindle function in a non-ATP competitive manner."}]