[{"from": "human", "value": "Please give me some details about this molecule. [C][C@@H1][C][C][C@@][Branch2][Branch1][#Branch2][C][C][C@@][Branch2][Branch1][Ring1][C][=Branch2][Ring2][=Branch1][=C][C][C@H1][C@][Ring1][=Branch1][Branch2][Ring1][N][C][C][C@@H1][C@@][Ring1][=Branch1][Branch2][Ring1][C][C][C@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@@][Ring1][=Branch1][Branch1][C][C][C][O][O][O][C][C][C@@H1][Ring2][Ring1][=Branch2][C@H1][Ring2][Ring1][=N][C][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a pentacyclic triterpenoid that is urs-12-ene substituted by a carboxy group at position 28 and hydroxy groups at positions 2, 3 and 23 (the 2alpha,3alpha stereoisomer). It has been isolated from Juglans sinensis. It has a role as a plant metabolite. It is a pentacyclic triterpenoid and a hydroxy monocarboxylic acid. It derives from a hydride of an ursane."}]