Patents by Inventor Robert SCHEFFER

Robert SCHEFFER 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).

  • METHOD FOR THE PREPARATION OF OXAZOLES BY CONDENSING AROMATIC ALDEHYDES WITH ALPHA-KETOXIMES TO FORM N-OXIDES AND REACTING SAME WITH ACTIVATIVED ACID DERIVATIVES
    Publication number: 20080058529
    Abstract: The present invention is comprised of improved methods in the preparation of oxazoles which results in higher yields with less impurities and contaminants. Oxazoles constitute valuable intermediates in the synthesis of pharmaceutically active substances such as, for example peroxisome proliferator activated receptor (PPAR) agonists which are pharmaceutical actives which can have a positive influence on both lipid and glucose metabolism.
    Type: Application
    Filed: May 29, 2007
    Publication date: March 6, 2008
    Applicant: SANOFI-AVENTIS DEUTSCHLAND GMBH
    Inventors: Wolfgang HOLLA, Rolf-Ludwig HOERLEIN, Berndt KULITZSCHER, Wolfgang LAUX, Thomas STUEDEMANN, Christoph TAPPERTZHOFEN, Robert SCHEFFER