Patents by Inventor Otto Clauder

Otto Clauder 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).

  • 3.alpha.,16.alpha.-14,15-Dihydroeburnamenine
    Patent number: 4163851
    Abstract: The new compound vincane of the formula ##STR1## is prepared by the reduction or reductive dehydratation, respectively, a compound of the formula ##STR2## wherein A.about.B represents the group --CH.dbd.CH-- or ##STR3## i.e. of vincamenine or of vincanol.
    Type: Grant
    Filed: July 6, 1977
    Date of Patent: August 7, 1979
    Assignee: Richter Gedeon Vegyeszeti Gyar RT
    Inventors: Otto Clauder, Arpad Kiraly, Jozsef Kokosi, Egon Karpati, Laszlo Szporny
  • 14-Substituted vincanes
    Patent number: 4120858
    Abstract: A compound of the formula (I) ##STR1## wherein X stands for a hydrogen atom, an optionally substituted aliphatic or aromatic sulfonyloxy group, a thiocyanato group, an azido group or an amino group optionally mono- or disubstituted by aliphatic, cycloaliphatic, aromatic or araliphatic hydrocarbon groups, acyl, alkyloxycarbonyl, cycloalkyloxycarbonyl, aryloxycarbonyl, aralkyloxycarbonyl, aminocarboimido groups or the substituents of the said amino group may form with the nitrogen atom thereof a five-, six- or seven-membered saturated or unsaturated heterocyclic ring optionally containing a further nitrogen, oxygen or sulfur hetero atom, and a quaternary salt or acid addition salt thereof. The compounds are useful in the treatment of arteriosclerosis and high blood pressure.
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: October 17, 1978
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Otto Clauder, Jozsef Kokosi, Laszlo Szporny, Egon Karpati