[{"from": "human", "value": "Provide a description of this molecule. [C][C@H1][Branch1][#Branch2][O][C@H1][Branch1][Ring2][S][Ring1][Branch1][C][O][N][C][=C][Branch1][#Branch2][C][=Branch1][=Branch1][=N][C][Ring1][=Branch1][=O][N][F]"}, {"from": "gpt", "value": "The molecule is a nucleoside analogue and reverse transcriptase inhibitor used in combination with other agents for treatment and prevention of human immunodeficiency virus (HIV) infection and the acquired immunodeficiency syndrome (AIDS). Emtricitabine does not appear to be a significant cause of drug induced liver injury, but may cause flares of disease in patients with underlying chronic hepatitis B virus (HBV) infection."}]