[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is major species at pH 7.3 It is a pentacyclic triterpenoid, a member of phytosterols and a 3beta-sterol."}, {"from": "gpt", "value": "[C][C@H1][Branch1][N][C][C][C][=Branch1][C][=C][C][Branch1][C][C][C][C@H1][C][C][C@@][Branch2][Ring2][#Branch2][C@@][Ring1][Branch1][Branch2][Ring2][Ring1][C][C][C@][C@H1][Ring1][=Branch1][C][C][C@@H1][C@][Ring1][=Branch1][Branch1][Ring2][C][Ring1][#Branch1][C][C][C@@H1][Branch1][N][C@@][Ring1][#Branch1][Branch1][C][C][C][=Branch1][C][=O][O-1][O][C][C]"}]