[{"from": "human", "value": "What can you tell me about this molecule? [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][O][/C][=C][/Br]"}, {"from": "gpt", "value": "The molecule is a synthetic thymidine analogue with potent antiviral activity against herpes simplex and varicella zoster viruses. Sorivudine is phosphorylated into triphosphate form within the cells; this metabolite interferes with viral DNA replication by inhibiting DNA polymerase activity without been incorporated into elongating viral DNA. Due to the dangerous effects of drug-drug interactions via its metabolite, sorivudine has been removed from the market."}]