Patents Assigned to Proctor & Gamble Pharmaceuticals, Inc.
  • Antimicrobial quinolonyl lactam esters
    Patent number: 5434147
    Abstract: Antimicrobial quinolonyl lactam esters comprising a lactam-containing moiety linked, by an ester group, to the 3-carboxy group of a quinolone moiety. These compounds are of the formula: ##STR1## wherein (1) R.sup.3, R.sup.4, and R.sup.5, together with bonds "a" and "b", form certain lactam-containing moieties similar to those known in the art to have antimicrobial activity; and(2) A, R.sup.6, R.sup.7, and R.sup.8 form any of a variety of quinolone or napthyridine structures similar to those known in the art to have antimicrobial activity.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: July 18, 1995
    Assignee: Proctor & Gamble Pharmaceuticals, Inc.
    Inventors: Ronald W. White, Thomas P. Demuth, Jr.