Patents by Inventor Gregor Sersa

Gregor Sersa 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).

  • Heterocyclic acyldipeptides, processes for the preparation thereof and pharmaceutical compositions containing the same
    Patent number: 5824652
    Abstract: Heterocyclic acyldipeptides of the formula I ##STR1## wherein Z represents an oxygen or sulphur atom or a --CH.sub.2 -group;R.sub.1, R.sub.2 and R.sub.3 individually represent hydrogen or certain organic groups;R.sub.4 and R.sub.5, which are identical or different, represent an OR.sub.6 or NHR.sub.6 group, wherein R.sub.6 is hydrogen or certain organic groups;Y represents a --CH.sub.2 --, .dbd.CH-- or .dbd.N-- group;A represents a --(CH.sub.2).sub.3 -- group when Y is --CH.sub.2 --, the two rings being transcondensed, or a ##STR2## wherein R.sub.7 represents H, F, Br, Cl, nitro, or certain organic groups when Y is .dbd.CH-- or .dbd.N--; and their pharmaceutically acceptable salts are provided. These heterocyclic acyldipeptides and their salts are useful as active compounds in medicaments having immunostimulatory and antitumor activity.
    Type: Grant
    Filed: January 4, 1996
    Date of Patent: October 20, 1998
    Assignees: Univerza v Ljubljani, Fakulteta za naravoslovje in technologijo, Oddelek za farmacijo, LEK, tovarna farmacevtskih in kemicnih izdelkov, d.d.
    Inventors: Danijel Kikelj, Elizabeta Suhadolc, Alenka Rutar, Slavko Pecar, Alesa Puncuh, Uros Urleb, Vesna Leskovsek, Gasper Marc, Marija Sollner, Ales Krbavcic, Gregor Sersa, Srdjan Novakovic, Lucka Povsic, Anton Stalc