[{"from": "human", "value": "Please give me some details about this molecule. [C][C@@H1][C@H1][Branch2][Ring1][Branch2][C@@H1][C][=Branch1][C][=O][C][=Branch1][=N][=C][C@][Ring1][Branch2][Branch1][Branch1][C][Ring1][#Branch1][=O][O][C][C][C][=C][C][=C][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][O][C]"}, {"from": "gpt", "value": "The molecule is a neolignan with formula C20H22O5, originally isolated from Piper kadsura. It has a role as a platelet-activating factor receptor antagonist and a plant metabolite. It is a bridged compound, a carbobicyclic compound, a cyclic ketone, an enone, a neolignan and a member of guaiacols."}]