Patents by Inventor Anand Gopalkrishna Kamat

Anand Gopalkrishna Kamat 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).

  • Solvates of darunavir
    Patent number: 9643976
    Abstract: The present invention relates to novel solvates of Darunavir of Formula I.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: May 9, 2017
    Assignee: Aurobindo Pharma Ltd.
    Inventors: Anand Gopalkrishna Kamat, Naga Trinadhachari Ganala, Venkata Balaji Boddu, Joseph Prabahar Koilpillai, Sivakumaran Meenaakshisunderam
  • NOVEL SOLVATES OF DARUNAVIR
    Publication number: 20150141382
    Abstract: The present invention relates to novel solvates of Darunavir of Formula I.
    Type: Application
    Filed: January 11, 2013
    Publication date: May 21, 2015
    Inventors: Anand Gopalkrishna Kamat, Naga Trinadhachari Ganala, Venkata Balaji Boddu, Joseph Prabahar Koilpillai, Sivakumaran Meenaakshisunderam
  • Process for the preparation of solifenacin succinate
    Patent number: 8772491
    Abstract: The present invention relates to a process for the preparation of Solifenacin succinate by condensing a compound of formula (IVb) with (RS)-3-quinuclidinol, wherein, R represents methyl, ethyl, isopropyl; to produce a diastereomeric mixture of (1S)-3,4-dihydro-1-phenyl-2(1H)-isoquinolinecarboxylic acid (3RS)-1-azabicyclo[2.2.2]oct-3-yl ester, which is treated with succinic acid in a solvent or mixture of solvents to produce optically pure Solifenacin succinate, Formula (X).
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: July 8, 2014
    Assignee: Aurobindo Pharma Ltd
    Inventors: Anand Gopalkrishna Kamat, Joseph Prabahar Koilpillai, Naga Trinadhachari Ganala, Venkata Lakshmi Upputuri, Venkata Balalji Boddu, Sivakumaran Meenakshisunderam
  • NOVEL PROCESS FOR THE PREPARATION OF SOLIFENACIN SUCCINATE
    Publication number: 20130123502
    Abstract: The present invention relates to a process for the preparation of Solifenacin succinate by condensing a compound of formula (IVb) with (RS)-3-quinuclidinol, wherein, R represents methyl, ethyl, isopropyl; to produce a diastereomeric mixture of (1S)-3,4-dihydro-1-phenyl-2(1H)-isoquinolinecarboxylic acid (3RS)-1-azabicyclo[2.2.2]oct-3-yl ester, which is treated with succinic acid in a solvent or mixture of solvents to produce optically pure Solifenacin succinate, Formula (X).
    Type: Application
    Filed: June 20, 2011
    Publication date: May 16, 2013
    Inventors: Anand Gopalkrishna Kamat, Joseph Prabahar Koilpillai, Naga Trinadhachari Ganala, Venkata Lakshmi Upputuri, Venkata Balalji Boddu, Sivakumaran Meenakshisunderam
  • Process for preparing tamsulosin hydrochloride
    Patent number: 8273918
    Abstract: The invention relates to an process for preparing Tamsulosin hydrochloride of Formula (I) which comprises (i) reacting (R)-(?)-5-(2-amino-propyl)-2-methoxybenzenesulfonamide of Formula (II) with substituted phenoxy compound of Formula (III), wherein Z represents a removing group, such as —OSO2CH3, —OSO2C6H4CH3, —F, —Br, —Cl, or —I, in a solvent in the presence of an alkaline earth metal oxide to obtain Tamsulosin base and (ii) converting Tamsulosin base into hydrochloride salt in a solvent by addition of aqueous hydrochloric acid.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: September 25, 2012
    Assignee: Avrobindo Pharma Ltd.
    Inventors: Anand Gopalkrishna Kamat, Narsimha Reddy Penthala, Sivakumaran Meenakshisunderam
  • Process for Preparing Tamsulosin Hydrochloride
    Publication number: 20100267987
    Abstract: The invention relates to an process for preparing Tamsulosin hydrochloride of Formula (I) which comprises (i) reacting (R)-(?)-5-(2-amino-propyl)-2-methoxybenzenesulfonamide of Formula (II) with substituted phenoxy compound of Formula (III), wherein Z represents a removing group, such as —OSO2CH3, —OSO2C6H4CH3, —F, —Br, —Cl, or —I, in a solvent in the presence of an alkaline earth metal oxide to obtain Tamsulosin base and (ii) converting Tamsulosin base into hydrochloride salt in a solvent by addition of aqueous hydrochloric acid.
    Type: Application
    Filed: August 10, 2006
    Publication date: October 21, 2010
    Applicant: AUR OBINDO PHARMA LTD
    Inventors: Anand Gopalkrishna Kamat, Narsimha Penthala, Sivakumaran Meenakshisunderam
  • Process for the preparation of terazosin hydrocloride dihydrate
    Publication number: 20070161791
    Abstract: The present invention relates to an improved process for the preparation of 1-(4-amino-6,7-dimethoxyquinazolin-2-yl)-4-[[(2RS)-2,3,4,5-tetrahydrofuran-2-yl]carbonyl]piperazine hydrochloride dihydrate of Formula I, through an intermediate 1-(4-amino-6,7-dimethoxyquinazolin-2-yl)-4-[[(2RS)-2,3,4,5-tetrahydrofuran-2-yl]carbonyl]piperazine hydrochloride/hydrobromide (V).
    Type: Application
    Filed: January 3, 2007
    Publication date: July 12, 2007
    Inventors: Narsimha Reddy Penthala, Anand Gopalkrishna Kamat, Sivakumaran Meenakshisunderam