[{"from": "human", "value": "Provide a description of this molecule. [C][C@@][C][C][C@@H1][C@@][Branch2][Ring2][#Branch1][C@H1][Ring1][=Branch1][C][C][=C][C@][Ring1][#Branch2][Branch2][Ring1][#Branch2][C][C][C@@][Branch1][S][C@H1][Ring1][=Branch1][C][C][Branch1][Branch1][C][C][Ring1][=Branch1][Branch1][C][C][C][C][=Branch1][C][=O][O][C][Branch2][Ring1][Ring1][C][C@H1][Branch1][=C][C@H1][Branch1][#Branch2][C@@][Ring2][Ring1][=Branch2][Branch1][C][C][C][O][O][O][C]"}, {"from": "gpt", "value": "The molecule is a pentacyclic triterpenoid that is olean-12-en-28-oic acid substituted by hydroxy groups at positions 2, 3 and 23 respectively (the 2alpha,3alpha-stereoisomer). It has been isolated from the leaves of Rosa laevigata. It has a role as a plant metabolite and an anti-inflammatory agent. It is a hydroxy monocarboxylic acid, a triol and a pentacyclic triterpenoid. It derives from a hydride of an oleanane."}]