[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C@@H1][Branch2][Ring2][#Branch1][C@@H1][Branch2][Ring1][Branch2][C@H1][Branch1][Branch1][C][Ring1][Branch1][=O][/C][=C][/C@H1][Branch1][O][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C][/C][=C][\\C][C][C][C][=Branch1][C][=O][O][O]"}, {"from": "gpt", "value": "The molecule is a prostanoid that is 18,19,20-trinor-prostaglandin D2 in which one of the terminal methyl hydrogens has been replaced by a phenyl group. It has a role as a human metabolite. It is a beta-hydroxy ketone, an alicyclic ketone, a hydroxy monocarboxylic acid, an olefinic compound, an oxo monocarboxylic acid, a secondary alcohol and a prostanoid."}]