Patents by Inventor Zsuzsanna Visky nee Gombos

Zsuzsanna Visky nee Gombos 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).

  • Azetidinone-4-carboxylate containing a protected 3-acetyl group and process for their preparation
    Patent number: 4541955
    Abstract: The invention relates to new heterocyclic compounds containing a protected C-acetyl group. More particularly, the invention concerns new compounds of the Formula (V) ##STR1## wherein R is a group suitable for the protection of amides;Z is alkyl; andY.sup.1 and Y.sup.2 together form a group suitable for temporary protection of a keto group. The new compounds are valuable intermediates in the synthesis of thienamycin.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: September 17, 1985
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Karoly Lempert, Kalman Harsanyi, Gabor Doleschall, Gyula Hornyak, Jozsef Nyitrai, Karoly Zauer, Jozsef Fetter, Gyula Simig, Zsuzsanna Visky nee Gombos, Gizella Barta nee Szalai
  • Heterocyclic compounds containing an alkoxycarbonyl and a substituted methyl group
    Patent number: 4435322
    Abstract: The invention relates to new heterocyclic compound containing an alkoxycarbonyl and a substituted methyl group a process for the preparation of these and analogeous compound and pharmaceutical compositions containing them.More particularly, the invention concerns compounds of the general formula (IVa) ##STR1## wherein R' is hydrogen, 2-ethoxycarbonylethyl, aryl or a group suitable for a temporary protection of amides andY' represents a group of the formula --COOZ or --CH.sub.2 M, in whichZ is lower alkyl andM is hydroxyl, halogen, cyano or a group of the formula --O--SO.sub.2 R.sup.2, in whichR.sup.2 is lower alkyl or aryl,with the proviso that if R' is phenyl, Y' cannot stand for the group --COOC.sub.2 H.sub.5.The invention further relates to a process for the preparation of compounds of the general formula (IV) ##STR2## in which R and Y are identical with R' and Y', respectively, except the proviso.
    Type: Grant
    Filed: September 11, 1981
    Date of Patent: March 6, 1984
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Karoly Lempert, Kalman Harsanyi, Gabor Doleschall, Gyula Hornyak, Jozsef Nyitrai, Karoly Zauer, Jozsef Fetter, Gyula Simig, Zsuzsanna Visky nee Gombos, Gizella Barta nee Szalai
  • Beta-lactam compounds containing a C-acetal group and process for their preparation
    Patent number: 4432901
    Abstract: The invention relates to new heterocyclic compounds containing a C-acetyl group and a process for their preparation. More particularly, the invention concerns new compounds of the formula (III). ##STR1## in which R is a protecting group suitable for temporary protection of amines and amides or an aryl group, and Z is alkyl.The compounds are intermediates in the preparation of penicillins.
    Type: Grant
    Filed: September 11, 1981
    Date of Patent: February 21, 1984
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Karoly Lempert, Kalman Harsanyi, Gabor Doleschall, Gyula Hornyak, Jozsef Nitrai, Karoly Zauer, Jozsef Fetter, Gyula Simig, Zsuzsanna Visky nee Gombos, Gizella Barta nee Szalai