[{"from": "human", "value": "Describe this molecule. [C][C@@][Branch2][Ring1][S][C][C][C@H1][C][=Branch2][Ring1][Branch1][=C][C][C@@H1][C@@][Ring1][=Branch1][Branch1][N][C][C][C][C@@][Ring1][=Branch1][Branch1][C][C][C][=O][C][C][Ring2][Ring1][C][C][=C]"}, {"from": "gpt", "value": "The molecule is a carbotricyclic compound and a diterpenoid. It derives from a hydride of an isopimara-7,15-diene."}]