[{"from": "human", "value": "Describe this molecule. [C][C@H1][C][O][C][=C][N][Ring1][=Branch1][C][=C][Branch2][Ring1][O][C][=Branch1][C][=O][C][Ring1][#Branch1][=C][C][=Branch1][#C][=C][Ring1][O][N][C][C][N][Branch1][Branch1][C][C][Ring1][=Branch1][C][F][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a synthetic fluoroquinolone antibacterial agent that inhibits the supercoiling activity of bacterial DNA gyrase, halting DNA replication. Levofloxacin is marketed by Ortho-McNeil under the trade name Levaquin. Chemically, levofloxacin is the S-enantiomer (L-isomer) of ofloxacin."}]