[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a nucleoside analog of uridine with activity against hepatitis B virus and herpes viruses. Fialuridine inhibits viral DNA polymerase and viral replication."}, {"from": "gpt", "value": "[C][=C][Branch2][Ring1][=C][C][=Branch1][C][=O][N][C][=Branch1][C][=O][N][Ring1][Branch2][C@H1][C@H1][Branch1][=N][C@@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][Branch1][C][O][O][F][I]"}]