[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C@@H1][C@H1][Branch1][=C][C@@H1][Branch1][=Branch2][C][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][O][C][O]"}, {"from": "gpt", "value": "The molecule is a natural product found in Cynanchum viminale, Cynanchum boudieri, and Cynanchum caudatum with data available."}]