Wenderoth, Lind & Ponack
Oxo quinoline derivatives
 A quinoline derivative of the formula ##STR1## wherein Z is an amino group or a halogen atom, and R.sub.1, R.sub.2 and R.sub.3 are the same or different and each represents a hydrogen atom or a lower alkyl group having 1 to 5 carbon atoms, and an ester thereof and a salt of the derivative or the ester and processes for preparation thereof. These compounds show excellent antibacterial activity and are useful as antibacterial agents. 
Dainippon Pharmaceutical Co., Ltd.
C A
C07D A61P
inventional inventional
Jun-ichi Junji Shinichi Tohru Akira Masahiro
Matsumoto Nakano Nakamura Hirose Minamida Fujita