Patents Assigned to Richter Gedeon Vegyszeti Gyar Rt.
  • Patent number: 4279816
    Abstract: New leurosine derivatives of the general formula (1), ##STR1## wherein R stands for hydrogen or formyl, or pharmaceutically acceptable acid addition salts thereof were prepared by oxidizing leurosine or an acid addition salt thereof, optionally formylating the thus-obtained product and then separating, and, if desired, converting any of the free bases into its acid addition salt.
    Type: Grant
    Filed: February 5, 1975
    Date of Patent: July 21, 1981
    Assignee: Richter Gedeon Vegyszeti Gyar Rt.
    Inventors: Karola Jovanovics, Kalman Szasz, Bela Kellner, Laszlo Nemeth, Zsuzsa Relle, Emil Bittner, Eszter Dezseri, Janos Eles