[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a natural product found in Plocamium mertensii and Plocamium cartilagineum with data available."}, {"from": "gpt", "value": "[C][C@][Branch1][P][C][C][=Branch1][C][=C][C@@H1][Branch1][=Branch1][C][C@@H1][Ring1][#Branch1][Br][/C][=C][/Cl][Cl]"}]