[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][Ring1][Ring1][C][N][C][C][C@][C@@H1][C][=Branch1][C][=O][C][C][C@][Ring1][#Branch1][Branch2][Ring1][#Branch1][C@H1][Ring1][O][C][C][=C][Ring1][O][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][O][Ring1][S][O].[Cl]"}, {"from": "gpt", "value": "The molecule is the hydrochloride salt of naltrexone, a noroxymorphone derivative with competitive opioid antagonistic activity. Naltrexone and its metabolite 6-beta-naltrexol reverse the effects of opioids by binding to various opioid receptors in the central nervous system CNS), including the mu-, kappa- and gamma-opioid receptors; opioid effects of analgesia, euphoria, sedation, respiratory depression, miosis, bradycardia, and physical dependence are inhibited. Naltrexone is longer-acting and more potent compared to naloxone."}]