Patents by Inventor Ramzi F. Sweis

Ramzi F. Sweis 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).

  • Cetp Inhibitors
    Publication number: 20090264405
    Abstract: Compounds of Formula I, including pharmaceutically acceptable salts of the compounds, are CETP inhibitors, and are useful for raising HDL-cholesterol, reducing LDL-cholesterol, and for treating or preventing atherosclerosis.
    Type: Application
    Filed: October 30, 2006
    Publication date: October 22, 2009
    Inventors: Amjad Ali, Julianne A. Hunt, Florida Kallashi, Jennifer Kowalchick, Dooseop Kim, Cameron J. Smith, Peter J. Sinclair, Ramzi F. Sweis, Gayle E. Taylor, Christopher F. Thompson, Liya Chen, Nazia Quraishi
  • Cross-coupling reaction of organosilicon nucleophiles
    Patent number: 6867323
    Abstract: Improved methods for generating a —C—C— bond by cross-coupling of a transferable group with an acceptor group. The transferable group is a substituent of an organosilicon nucleophile and the acceptor group is provided as an organic electrophile. The reaction is catalyzed by a Group 10 transition metal complex (e.g., Ni, Pt or Pd), particularly by a palladium complex. Certain methods of this invention use improved organosilicon nucleophiles which are readily prepared, can give high product yields and exhibit high stereoselectivity. Methods of this invention employ activating ions such as halides, hydroxide, hydride and silyloxides. In specific embodiments, organosilicon nucleophilic reagents of this invention include siloxanes, particularly cyclic siloxanes. The combination of the cross-coupling reactions of this invention with ring-closing metathesis, hydrosilylation and intramolecular hydrosilylation reactions provide useful synthetic strategies that have wide application.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: March 15, 2005
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Scott E. Denmark, Jun Young Choi, Daniel Wehrli, Zhicai Wu, Luc Neuville, Weitao Pan, Ramzi F. Sweis, Zhigang Wang, Shyh-Ming Yang
  • Cross-coupling reaction of organosilicon nucleophiles
    Publication number: 20020183516
    Abstract: Improved methods for generating a —C—C— bond by cross-coupling of a transferable group with an acceptor group. The transferable group is a substituent of an organosilicon nucleophile and the acceptor group is provided as an organic electrophile. The reaction is catalyzed by a Group 10 transition metal complex (e.g., Ni, Pt or Pd), particularly by a palladium complex. Certain methods of this invention use improved organosilicon nucleophiles which are readily prepared, can give high product yields and exhibit high stereo selectivity. Methods of this invention employ activating ions such as halides, hydroxide, hydride and silyloxides. In specific embodiments, organosilicon nucleophilic reagents of this invention include siloxanes, particularly cyclic siloxanes. The combination of the cross-coupling reactions of this invention with ring-closing metathesis, hydrosilylation and intramolecular hydrosilylation reactions provide useful synthetic strategies that have wide application.
    Type: Application
    Filed: June 6, 2001
    Publication date: December 5, 2002
    Inventors: Scott E. Denmark, Jun Young Choi, Daniel Wehrli, Zhicai Wu, Luc Neuville, Weitao Pan, Ramzi F. Sweis, Zhigang Wang, Shyh-Ming Yang