Spiro Patents (Class 540/307)
  • 6-(spirocyclopropyl) penicillanic acid 4, 4-dioxides
    Patent number: 6489316
    Abstract: The 6-(spirocyclopropyl)-penicillanic acid 4,4-dioxides of the general Formula (I): as defined herein above which exhibit beta-lactamase inhibiting activity, use of such compounds in combination with beta-lactam antibiotics for inhibiting beta-lactamases, pharmaceutical compositions and processes for preparing such compounds.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: December 3, 2002
    Assignee: American Cyanamid Company
    Inventors: Vincent P. Sandanayaka, Amarnauth S. Prashad
  • 6- (spirocyclopropyl) penicillanic acid 4, 4-dioxides
    Publication number: 20020147178
    Abstract: The 6-(spirocyclopropyl)-penicillanic acid 4,4-dioxides of the general Formula (I): 1
    Type: Application
    Filed: January 26, 2001
    Publication date: October 10, 2002
    Applicant: American Home Products Corporation
    Inventors: Vincent P. Sandanayaka, Amarnauth S. Prashad