[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][N][C][=C][Branch1][#Branch1][N][=C][C][=C][Ring1][=Branch1][N][C][C][N][Branch1][Branch1][C][C][Ring1][=Branch1][C][=Branch1][C][=O][C][=C][C][=C][Branch1][Ring2][N][Ring1][Branch1][C][=C][C][=Branch1][Ring2][=C][Ring1][#Branch1][O][C].[C][S][=Branch1][C][=O][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a mesylate salt form of atevirdine, a non-nucleoside reverse transcriptase inhibitor. Atevirdine is active against AZT-resistant virus strains."}]