[{"from": "human", "value": "Please give me some details about this molecule. [C][C][C][=Branch1][C][=O][N][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C@][Branch2][Ring1][Branch1][C][C][N][Branch1][=Branch1][C][C@H1][Ring1][=Branch1][C][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][C]"}, {"from": "gpt", "value": "The molecule is an analog of fentanyl and is one of the most potent opioids available today. It displays most similarity to carfentanil (4-carbomethoxyfentanyl) and is considered to be slightly more potent than this drug."}]