[{"from": "human", "value": "Provide a description of this molecule. [C][O][C][=Branch1][C][=O][O][C][O][C][=C][C][=Branch1][C][=O][N][C][C][O][C][C@H1][Ring1][=Branch1][N][Branch1][#Branch2][N][Ring1][O][C][=C][C][Ring1][#C][=O][C@H1][C][=C][Branch1][=N][C][S][C][=C][C][=C][C][=C][Ring1][O][Ring1][=Branch1][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=C][F][F]"}, {"from": "gpt", "value": "The molecule is an antiviral drug used to treat influenza. More specifically, it is a first-in-class cap-dependent endonuclease inhibitor that works to block influenza virus proliferation. It is a prodrug of [baloxavir] with an improved absorption profile than its active metabolite due to the addition of a phenolic hydroxyl group to its structure. Baloxavir marboxil was first globally approved in Japan in February 2018, followed by the US approval in October, 2018."}]