Patents by Inventor Peter Flecker

Peter Flecker 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).

  • N-(2,10-dioxa-tricyclo-[5,3,1,0.sup.3,8 ]-undecane-5-yl)-tryptamine derivatives and medical compositions thereof
    Patent number: 4714709
    Abstract: N-(2,10-dioxa-tricyclo-[5,3,1,0.sup.3,8 ]-undecane-5-yl)-tryptamine compounds corresponding to the formula ##STR1## with blood-pressure lowering effects, a method of producing such compounds and pharmaceutical compositions incorporating such compounds, wherein R.sub.1 is hydrogen, a benzyl or lower alkyl group; R.sub.2 is a lower alkyl or lower alkanoyl group; R.sub.3 is hydrogen or a lower alkyl group; R.sub.4 is hydrogen, benzyloxy, hydroxy or a lower alkoxy group; R.sub.5 is hydrogen, benzyloxy, hydroxy or a lower alkoxy group; and A and B either are both hydrogen or together represent a bond between their respective carbons.
    Type: Grant
    Filed: September 24, 1984
    Date of Patent: December 22, 1987
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Peter W. Thies, Samuel David, Ulrich Kuehl, Gerd Buschmann, Peter Flecker