[{"from": "human", "value": "Describe this molecule. [C][C@][C][C][C@@H1][Branch2][Branch1][P][C][Branch2][Branch1][=Branch2][C@@H1][Ring1][=Branch1][C][C][C@@][Branch2][Ring2][#C][C@@H1][Ring1][#Branch2][C][C][=C][C@][Ring1][=Branch1][Branch2][Ring2][C][C][C@H1][Branch2][Ring1][N][C@@][Branch2][Ring1][Ring1][C@H1][Ring1][=Branch1][C][C][Branch1][Branch2][C@H1][Branch1][Ring2][C][Ring1][=Branch1][O][Branch1][C][C][C][C][=Branch1][C][=O][O][O][C][C][Branch1][C][C][C][O]"}, {"from": "gpt", "value": "The molecule is a pentacyclic triterpenoid that is olean-12-ene substituted by carboxy group at position 28 and hydroxy groups at positions 3, 16 and 21 (the 3beta,16alpha,21beta stereoisomer). It has a role as a metabolite. It is a pentacyclic triterpenoid and a hydroxy monocarboxylic acid. It derives from a hydride of an oleanane."}]