[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is guanosine substituted at the purine 8-position by a (9H-fluoren-2-yl)amino group."}, {"from": "gpt", "value": "[C][C@@H1][Branch2][Branch1][=Branch1][C@H1][Branch2][Ring2][S][O][C@H1][Ring1][Branch1][N][C][=C][Branch1][=N][C][=Branch1][C][=O][N][C][=Branch1][Ring2][=N][Ring1][#Branch1][N][N][=C][Ring1][O][N][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1][C][Ring1][O][C][O][O]"}]