Patents by Inventor Devasitham Prabhu

Devasitham Prabhu 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 the preparation of desloratadine
    Publication number: 20070060756
    Abstract: The present invention relates to an improved process for the preparation of compound of formula (I), 8-chloro-6,11-dihydro-11-(4-piperidinylidene)-5H-benzo[5,6]cyclohepta[1,2-b]pyridine (Desloratadine) or its pharmaceutically acceptable salts thereof, by reacting a compound of formula (II), 4-(8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)-1 piperidinecarboxylic acid ethyl ester (Loratadine) with sodium hydroxide in a solvent mixture of toluene and polyethylene glycol (PEG 400) at reflux temperature.
    Type: Application
    Filed: September 15, 2006
    Publication date: March 15, 2007
    Applicant: ORCHID CHEMICALS & PHARMACEUTICALS LTD.
    Inventors: Veerappan Vijayabaskar, Siripragada Rao, Prabhakaran Kannan, Devasitham Prabhu