Patents by Inventor Samjuddin Md Md

Samjuddin Md Md 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).

  • Methods for the preparation of Entacapone
    Patent number: 7385072
    Abstract: The invention disclosed in this application relates to an improved process for the preparation of Entacapone. In one embodiment the process involves: (i) reacting a 3-alkoxy-4-hydroxy-5-nitrobenzadehyde with N,N-diethylaminocyanoacetamide in the presence of a mild acid catalyst and a solvent, to provide a 3-O-alkylated Entacapone, and treating the 3-O-alkylated Entacapone with an acid catalyst in the presence of an organic base to provide Entacapone.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: June 10, 2008
    Assignee: Suven Life Sciences
    Inventors: Jasti Venkateswarlu, Arava Veera Reddy, Chinnapillai Rajendiran, Samjuddin Md Md