[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][C][C][C][=C][Branch2][Ring1][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][C][C@@H1][C@][Ring1][#Branch1][C][C][C][C@@][Ring1][=Branch1][Branch1][#Branch1][C][O][C][Ring1][Branch2][=O][C][O]"}, {"from": "gpt", "value": "The molecule is an abietane diterpenoid isolated from the stem bark of Fraxinus sieboldiana. It has a role as a plant metabolite. It is a diterpene lactone, an abietane diterpenoid and a tetracyclic diterpenoid."}]