Patents by Inventor Devendra Prakash NAGDA

Devendra Prakash NAGDA 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 4-BROMO-1-CHLORO-2-(4-ETHOXYBENZYL)BENZENE
    Publication number: 20160280619
    Abstract: The present invention provides a process for the preparation of 4-bromo-1-chloro-2-(4-ethoxybenzyl)benzene of Formula III, which can be used as an intermediate for the preparation of dapagliflozin, or solvates thereof.
    Type: Application
    Filed: October 30, 2014
    Publication date: September 29, 2016
    Inventors: Suresh Babu JAYACHANDRA, Devendra Prakash NAGDA, Tarun Kumar SINGH
  • PROCESS FOR THE PURIFICATION OF DAPAGLIFLOZIN
    Publication number: 20160237054
    Abstract: The present invention provides a process for the preparation of (1C)-2,3,4,6-tetra-O-acetyl-1,5-anhydro-1-[4-chloro-3-(4-ethoxybenzyl)phenyl]-D-glucitol of Formula III. The invention also provides a process for the purification of dapagliflozin using (1C)-2,3,4,6-tetra-O-acetyl-1,5-anhydro-1-[4-chloro-3-(4-ethoxybenzyl)phenyl]-D-glucitol of Formula III.
    Type: Application
    Filed: September 19, 2014
    Publication date: August 18, 2016
    Applicant: SUN PHARMACEUTICAL INDUSTRIES LIMITED
    Inventors: Suresh Babu JAYACHANDRA, Devendra Prakash NAGDA, Tarun Kumar SINGH
  • PROCESS FOR THE PREPARATION OF DAPAGLIFLOZIN
    Publication number: 20160214953
    Abstract: The present invention provides an improved process for the preparation of dapagliflozin.of Formula (II) wherein the process comprises the step of hydrolyzing the compound of Formula (III) in the presence of an amine base.
    Type: Application
    Filed: September 18, 2014
    Publication date: July 28, 2016
    Inventors: Suresh Babu JAYACHANDRA, Devendra Prakash NAGDA, Tarun Kumar SINGH