[{"from": "human", "value": "Provide a brief overview of this molecule. [C][O][C][C][O][C][C][O][C][C][O][C][C][O][C][C][O][C][C][O][C][C][O][C@H1][C][C][C@][Branch2][Ring1][P][C@H1][C][C][=C][C@][Ring1][=Branch1][Branch1][S][C@H1][Ring1][#Branch2][O][C][Ring1][Branch1][=C][Branch1][Branch1][C][=C][Ring1][=Branch2][O][C][C][N][Ring1][#C][C][C][=C][O]"}, {"from": "gpt", "value": "The molecule is an organic heteropentacyclic compound that is naloxone in which the keto group is replaced by a PEG moiety. Used for treatment of opioid-induced constipation. It has a role as a mu-opioid receptor antagonist and a cathartic. It is an organic heteropentacyclic compound, a member of phenols, an aromatic ether, a tertiary alcohol and a polyether. It is functionally related to a naloxone. It derives from a hydride of a morphinan."}]