Synonyms: Levofloxacin Ethyl Ester/Levofloxacin Acid Ester;Levofloxacin cyclized ester;Ethyl (s)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro - 7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylate;7H-Pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid;Levofloxacin carboxylic acid, ethyl ester;LEVOFLOXACIN ACID ESTER;Levofloxacin Acid Este;