Patents by Inventor Klaus Weidman

Klaus Weidman 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).

  • Substituted benzo[b]pyrans, processes for their preparation, their use and pharmaceutical preparations based on these compounds
    Patent number: 5130310
    Abstract: Benzo[b]pyran derivatives of the formula I ##STR1## with E--D equal to CH--CHOH or C.dbd.CH;X equal to oxygen or sulfur;Y equal to oxygen, sulfur, SO, SO.sub.2 or NR.sup.9 ;R.sup.1 equal to CN, NO.sub.2, Hal, alkoxycarbonyl, SO.sub.1-2 -alkyl or SO.sub.1-2 -aryl;R.sup.2 equal to H, OH, alkoxy, alkyl, Hal, NR.sup.10 R.sup.11 ;R.sup.3 /R.sup.4 equal to alkyl;R.sup.5 /R.sup.6 equal to alkyl, (CH.sub.2).sub.1-6 COO-alkyl, (CH.sub.2).sub.1-6 CONR.sup.10 R.sup.11, (CH.sub.2).sub.0-6 COOH, (CH.sub.2).sub.1-6 CO-alkyl, CO.sub.2 -alkyl, alkylmercaptoalkyl, alkylsulfi(i)(o)nyl, hydroxyalkyl, mercaptoalkyl, aminoalkyl, N-(di)-alkylaminoalkyl or (CH.sub.2).sub.f Ar with f equal to zero-3;R.sup.7 /R.sup.8 equal to hydrogen, alkyl or phenyl, and m equal to zero-2are outstanding antihypertensives and spasmolytics. Preparation processes and use are described.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: July 14, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus Weidman, Heinrich C. Englert, Bernward Scholkens, Martin Bickel