Patents by Inventor Ramiya Premchandran

Ramiya Premchandran 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).

  • Preparation of quinoline-substituted carbonate and carbamate derivatives
    Publication number: 20060128962
    Abstract: The invention relates to a process for preparing quinoline-substituted carbonate and carbamate compounds, which are important intermediates in the synthesis of 6-O-substituted macrolide antibiotics. The process employs metal-catalyzed coupling reactions to provide a carbonate or carbamate of formula (I) or (II) or a substrate that can be reduced to obtain the same.
    Type: Application
    Filed: February 6, 2006
    Publication date: June 15, 2006
    Inventors: Michael Allen, Ramiya Premchandran, Sou-Jen Chang, Stephen Condon, John DeMattei, Steven King, Lawrence Kolaczkowski, Sukumar Manna, Paul Nichols, Hemant Patel, Subhash Patel, Daniel Plata, Eric Stoner, Jien-Heh Tien, Steven Wittenberger
  • Process for the preparation of 6-O-propargyl erythromycin derivatives
    Patent number: 6605707
    Abstract: Disclosed herein is a process for the preparation of erythromycin derivatives, or pharmaceutically acceptable salts thereof, which contain an optionally substituted propargyl group at the 6-O-position.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: August 12, 2003
    Assignee: Abbott Laboratories
    Inventors: Francis A. J. Kerdesky, Ramiya Premchandran, Gregory S. Wayne, Sou-Jen Chang, Jonathan P. Pease, Lakshmi Bhagavatula, John E. Lallaman, Howard E. Morton, Steven A. King
  • Process for the preparation of farnesyltransferase inhibitors
    Patent number: 6248919
    Abstract: A process for the preparation of preparation of farnesyltransferase inhibitors of formula (I) or pharmaceutically acceptable salts or prodrugs thereof, is disclosed.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: June 19, 2001
    Assignee: Abbott Laboratories
    Inventors: Todd S. McDermott, Anne E. Bailey, Ramiya Premchandran, Lakshima Bhagavatula