Patents Examined by Mark Berd
  • Aryl thioxanthines
    Patent number: 6066641
    Abstract: The present invention relates to novel compounds of the formula (I): ##STR1## wherein Q.sub.3 R.sub.3 and Q.sub.8 R.sub.8 are described herein. The compounds possess PDE-IV inhibitory activity and improved selectivity with regard to PDE-III inhibition. Also disclosed are pharmaceutical compositions and methods of treatment utilizing the disclosed compounds.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: May 23, 2000
    Assignee: Euro-Celtique S.A.
    Inventors: David Cavalla, Peter Hofer, Mark Chasin