[{"from": "human", "value": "What can you tell me about this molecule? [C][C][Branch1][C][C][C][=C][Branch2][Ring2][=Branch1][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C@H1][Branch2][Ring1][=Branch2][C@@H1][C@@H1][C@@][Ring1][#Branch1][Branch1][O][C][C][C][C][Ring1][=Branch1][Branch1][C][C][C][C][=Branch1][C][=O][O][Ring1][N][O][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."}]