[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a tricyclic diterpenoid isolated from the stem bark of Fraxinus sieboldiana. It has a role as a plant metabolite. It is a cyclic terpene ketone, a member of phenols and a tricyclic diterpenoid."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][C][=C][Branch2][Ring1][N][C][=C][C@H1][C][C][C][C][Branch1][#C][C@@H1][Ring1][=Branch1][C][C][=Branch1][C][=O][C][Ring1][O][=C][Ring1][#C][Branch1][C][C][C][O]"}]