Patents by Inventor James F. Dropinski

James F. Dropinski has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for preparing side chain derivatives of cyclohexapeptidyl lipopeptides
    Patent number: 5684128
    Abstract: An improved process for the preparation of side chain derivatives of cyclohexapeptidyl lipopeptides represented by the formula ##STR1## wherein R.sup.1 is fully defined, is disclosed.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: November 4, 1997
    Assignee: Merck & Co., Inc.
    Inventors: James M. Balkovec, Frances A. Bouffard, James F. Dropinski, Akinlolu A. Adefarati, Jan S. Tkacz
  • Process for preparing side chain derivatives of cyclohexapeptidyl lipopeptides
    Patent number: 5646245
    Abstract: An improved process for the preparation of side chain derivatives of cyclohexapeptidyl lipopeptides represented by the formula ##STR1## wherein R.sup.1 is fully defined, is disclosed.
    Type: Grant
    Filed: May 16, 1996
    Date of Patent: July 8, 1997
    Inventors: James M. Balkovec, Frances A. Bouffard, James F. Dropinski, Akinlolu A. Adefarati, Jan S. Tkacz
  • Aza cyclohexapeptide compounds
    Patent number: 5516756
    Abstract: The present invention is directed to novel aza cyclohexapeptide compounds of the formula ##STR1## where all substituents are defined herein, which are useful as antifungal agents and for the treatment of Pneumocystis carinii infections. Compositions containing the compounds of the invention are also disclosed.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: May 14, 1996
    Assignee: Merck & Co., Inc.
    Inventors: James M. Balkovec, Frances A. Bouffard, James F. Dropinski
  • Aza cyclohexapeptide compounds
    Patent number: 5514651
    Abstract: The present invention relates to aza cyclohexapeptide compounds of the formula (Seq ID Nos. 1-10) ##STR1## which may be useful as antibiotics, antifungal agents and for the treatment of Pneumocystis carinii infections.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: May 7, 1996
    Assignee: Merck & Co., Inc.
    Inventors: James M. Balkovec, Frances A. Bouffard, James F. Dropinski