[{"from": "human", "value": "Could you provide a description of this molecule? [C][Branch2][Ring1][Ring2][C][C@@H1][Branch1][O][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][O][C][18F]"}, {"from": "gpt", "value": "The molecule is under investigation in clinical trial NCT02370563 (PET Imaging of Intracranial Cancers With 18F-FSPG)."}]