[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C@H1][C][=Branch1][C][=O][C][C][C@@H1][C@@][Ring1][#Branch1][Branch2][Ring2][N][C][C][C@H1][C@][Ring1][=Branch1][Branch2][Ring2][C][C][C][C@@][Branch2][Ring1][O][C@@][Ring1][=Branch1][Branch2][Ring1][Ring2][C][C][C@@][Branch1][Ring2][C][Ring1][=Branch1][Branch1][C][C][C][C][C][=C][Branch1][C][C][C][C][C][C][C]"}, {"from": "gpt", "value": "The molecule is a tetracyclic triterpenoid that is perhydrochrysene which is substituted by methyl groups at positions 1, 4bbeta, 6aalpha, 8beta, 10abeta and 12a positions, by a 4-methylpent-3-enyl group at the 8alpha position, and with an oxo group at position 2. It is a tetracyclic triterpenoid and a cyclic terpene ketone."}]