[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][C][=Branch1][C][=O][C@@H1][Branch1][S][C@H1][Ring1][=Branch1][/C][=C][/C@H1][Branch1][#Branch1][C][C][C][C][C][O][O][C][C][C][C][C][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a prostaglandin A derivative that is prostaglandin A1 in which one of the methyl hydrogens at position 20 has been replaced by a hydroxy group. It is a primary alcohol, a secondary allylic alcohol, a prostaglandins A and a diol. It is functionally related to a prostaglandin A1. It is a conjugate acid of a 20-hydroxyprostaglandin A1(1-)."}]