[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][C][C@H1][Branch2][Ring1][Branch2][C][Branch1][P][C@][Ring1][=Branch1][C][C][C@H1][Branch1][Ring2][C][Ring1][Branch1][C][=Branch1][C][=O][C][Branch1][C][C][C][Br]"}, {"from": "gpt", "value": "The molecule is a spirocyclic sesquiterpenoid that is isolated from the red alga Laurencia glandulifera. It has a role as an algal metabolite. It is a sesquiterpenoid, a methyl ketone, a spiro compound, an organobromine compound and an olefinic compound."}]