[{"from": "human", "value": "Please give me some details about this molecule. [C][C][=C][Branch1][=N][C@H1][Branch1][=Branch2][C@H1][Branch1][Branch1][C][=C][Ring1][=Branch1][O][O][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][#C]"}, {"from": "gpt", "value": "The molecule is a fluorene derivative obtained by formal dihydroxylation across the 3,4-position of fluorene (the 3S,4R-diastereomer)."}]