[{"from": "human", "value": "Could you provide a description of this molecule? [C][C@@H1][C][C][C@@][C][O][C@][Branch1][Branch2][C@@H1][Ring1][Branch1][C@H1][Ring1][=Branch2][C][C][=C][C@@H1][C@][Branch2][Branch2][C][C][C][C@@H1][Branch2][Ring1][P][C@@][Branch2][Ring1][Branch2][C@@H1][Ring1][=Branch1][C][C][C@][Ring1][#Branch2][Branch1][=N][C@@][Ring1][P][Branch1][#Branch1][C][C@H1][Ring2][Ring1][=Branch1][O][C][C][Branch1][C][C][C][O][O][C@H1][C@@H1][Branch1][S][C@H1][Branch1][N][C@H1][Branch1][Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][O][O][C@H1][C@@H1][Branch1][P][C@H1][Branch1][=N][C@@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][O][O][O][C@H1][C@@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@@H1][Branch1][Branch1][C][O][Ring1][=Branch1][O][O][O][C]"}, {"from": "gpt", "value": "The molecule is a triterpenoid saponin that consists of urs-11-ene substituted by an epoxy group across positions 13 and 28, a hydroxy groups at position 16 and 23 and a beta-D-xylopyranosyl-(1->2)-beta-D-glucopyranosyl-(1->2)-beta-D-fucopyranosyloxy group at position 3 (the 3beta,16alpha stereoisomer). Isolated from the fruits of Bupleurum rotundifolium, it exhibits antiproliferative activity against cancer cells. It has a role as an antineoplastic agent and a plant metabolite. It is a bridged compound, a cyclic ether, a hexacyclic triterpenoid, a trisaccharide derivative and a triterpenoid saponin. It derives from a hydride of an ursane."}]