Patents by Inventor Helmut Schlemper

Helmut Schlemper 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).

  • Process for preparing enantiomerically pure indolopyridines
    Patent number: 8557991
    Abstract: Disclosed is a novel process for the preparation of pharmacologically interesting indolopyridine derivatives containing tetracyclic tetrahydro-11-carboline-hydantoines linked to a basic side chain and the corresponding salts, which can be used as Eg5 inhibitors, with very high overall chemical yield and enantiomeric purity.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: October 15, 2013
    Assignee: 4SC AG
    Inventors: Bernd Muller, Helmut Schlemper
  • PROCESS FOR PREPARING ENANTIOMERICALLY PURE INDOLOPYRIDINES
    Publication number: 20110077404
    Abstract: The invention relates to a novel process for the preparation of pharmacologically interesting indolopyridine derivatives containing tetracyclic tetrahydro-?-carboline-hydantoines linked to a basic side chain and the corresponding salts, which can be used as Eg5 inhibitor, with very high overall chemical yield and enantiomeric purity.
    Type: Application
    Filed: March 5, 2009
    Publication date: March 31, 2011
    Applicant: 4SC AG
    Inventors: Bernd Muller, Helmut Schlemper