QUINOLINECARBOXYLIC ACID DERIVATIVE OR SALTS THEREOF

摘要

1-(6-Amino-3,5-difluoropyridin-2-yl)-8-bromo-7-(3-ethylaminoazetidin-1 -yl)-6 - fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid or salts thereof and dru gs containing the same. This compound is characterized by, when orally administered, showing a long half-life in blood while sustaining an extremel y high antibacterial effect and a low toxicity, and having an extremely high bioavailability. Thus, it is widely usable as preventives and remedies for various infectious diseases in humans and animals.