[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a pentacyclic triterpenoid that is 9beta,19-cyclolanostane substituted by an oxo group at position 3 and hydroxy groups at positions 7, 23R*, 24S*, 25 and 28. It has been isolated from the leaves of Combretum quadrangulare. It has a role as a plant metabolite. It is a pentol, a cyclic terpene ketone, a pentacyclic triterpenoid, a 3-oxo-5alpha-steroid and a 4alpha-hydroxymethyl steroid. It derives from a hydride of a cycloartane."}, {"from": "gpt", "value": "[C][C@H1][Branch2][Ring1][C][C][C@H1][Branch1][=N][C@@H1][Branch1][=Branch2][C][Branch1][C][C][Branch1][C][C][O][O][O][C@H1][C][C][C@@][Branch2][Ring2][O][C@@][Ring1][Branch1][Branch2][Ring2][Ring2][C][C][C@][C@H1][Ring1][=Branch1][C@H1][Branch2][Ring1][=Branch2][C][C@@H1][C@][Ring1][=Branch1][Branch1][Ring2][C][Ring1][#Branch1][C][C][C][=Branch1][C][=O][C@@][Ring1][Branch2][Branch1][C][C][C][O][O][C][C]"}]