Patent · US Expired

Pyridonecarboxylic acids and their anti-bacterial compositions

US5017581A · kind A · utility

6Cited by
1References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 28, 1989
Grant dateMay 21, 1991
Priority date
Expiry dateSep 28, 2009

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P20/55
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A compound of the formula ##STR1## wherein R.sup.1 is hydrogen or a protecting group; R.sup.2 is C.sub.1 -C.sub.3 alkyl or C.sub.3 -C.sub.7 cycloalkyl; R.sup.3 is hydrogen, hydroxy, or amino; R.sup.4 is halogen; R.sup.5 and R.sup.6 each is identically or differently hydrogen or C.sub.1 -C.sub.3 alkyl; W is C.sub.1 -C.sub.3 alkylidene; X is N or C-Y; Y is hydrogen or halogen; or a pharmaceutically acceptable salt thereof, having a more potent antibacterial activity against G(+) and G(-) bacteria than known analogues, useful as antibacterial agents.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.