[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][C][C][C@@H1][C][C@H1][Branch2][Branch1][Branch2][C@H1][C@][Ring1][Branch1][Branch2][Ring2][#C][C][C][C@@][Branch2][Ring2][Branch2][C@@][Ring1][=Branch1][Branch2][Ring1][P][C][C][=C][C@H1][Ring1][=Branch1][C@H1][Branch2][Ring1][=Branch1][C][C@@H1][C@@][Ring1][=Branch1][Branch1][=C][C][=C][C][=Branch1][C][=O][C][Ring1][#Branch1][Branch1][C][C][C][C][O][C][C][C][O][O][C][=Branch1][C][=O][C]"}, {"from": "gpt", "value": "The molecule is a pentacyclic triterpenoid of the class of arborinane-type terpenoids isolated from the roots of Rubia yunnanensis. It has a role as an antineoplastic agent and a plant metabolite. It is an enone, an acetate ester, a diol, a cyclic terpene ketone and a pentacyclic triterpenoid."}]