Patents by Inventor Goverdhan Gilla

Goverdhan Gilla 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 amino alcohol derivatives or salts thereof
    Patent number: 10385006
    Abstract: The present invention relates to a process for the preparation of amino alcohol derivatives or salts thereof which may be used as intermediates in the preparation of HIV reverse transcriptase inhibitors, more preferably Carbovir and Abacavir. The present invention more specifically relates to a process for the preparation of (1S, 4R)-4-amino-2-cyclopentene-1-methanol of Formula IIIa.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: August 20, 2019
    Assignee: GRANULES INDIA LIMITED
    Inventors: Krishna Prasad Chigurupati, Prasad Raju Vnkv Vetukuri, Goverdhan Gilla, Rajasekhar Bhupathi
  • AN IMPROVED PROCESS FOR THE PREPARATION OF HCV INHIBITOR
    Publication number: 20180009790
    Abstract: The present invention provides a novel process for the preparation of Ledipasvir of Formula I and its pharmaceutically acceptable salts.
    Type: Application
    Filed: December 24, 2015
    Publication date: January 11, 2018
    Inventors: PRASAD RAJU VNKV VETUKURI, GOVERDHAN GILLA, RAJESH KUMAR RAPOLU, KRISHNA PRASAD CHIGURUPATI
  • Process for the preparation of rifamycin derivatives
    Patent number: 9765088
    Abstract: The present invention relates to an improved and industrially advantageous process for the preparation of Rifaximin with high purity and yield. Particularly, the present invention relates to improved processes for the preparation of Rifaximin from Rifamycin O and S. More particularly the present invention relates to a process for the preparation of Rifaximin through 3-halorifamycin S. The present invention further relates to a novel polymorph of Rifaximin and process for its preparation.
    Type: Grant
    Filed: April 19, 2015
    Date of Patent: September 19, 2017
    Assignee: GRANULES INDIA LIMITED
    Inventors: Prasada Raju Vetukuri Vnkv, Goverdhan Gilla, Ambaiah Boini, Krishna Prasad Chigurupati
  • PROCESS FOR THE PREPARATION OF AMINO ALCOHOL DERIVATIVES OR SALTS THEREOF
    Publication number: 20170233329
    Abstract: The present invention relates to a process for the preparation of amino alcohol derivatives or salts thereof. In particular the present invention relates to process for the preparation of amino alcohol derivatives or salts thereof which may be used as intermediates in the preparation of HIV reverse transcriptase inhibitors, more preferably Carbovir and Abacavir. The present invention more specifically relates to a process for the preparation of (1S,4R)-4-amino-2-cyclopentene-1-methanol of Formula IIIa. The present invention also specifically relates to process for the preparation of Abacavir sulfate of Formula II using compound of Formula IIIa prepared according to the process of the present invention.
    Type: Application
    Filed: October 26, 2015
    Publication date: August 17, 2017
    Inventors: KRISHNA PRASAD CHIGURUPATI, PRASAD RAJU VNKV VETUKURI, GOVERDHAN GILLA, RAJASEKHAR BHUPATHI
  • Crystalline forms of pemetrexed tromethamine salts
    Patent number: 9688682
    Abstract: The present invention is directed to novel crystalline forms of pemetrexed tromethamine salts and processes for preparation thereof.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: June 27, 2017
    Assignee: DR. REDDY'S LABORATORIES LIMITED
    Inventors: Ramesh Kumar Nadgoud, Sridhar Vasam, Siva Reddy Makireddy, Goverdhan Gilla, Syam Kumar Unniaran Kunhimon, Sachin Sharma, Kumara Swamy Dornala
  • AN IMPROVED PROCESS FOR THE PREPARATION OF RIFAMYCIN DERIVATIVES
    Publication number: 20170037055
    Abstract: The present invention relates to an improved and industrially advantageous process for the preparation of Rifaximin with high purity and yield. Particularly, the present invention relates to improved processes for the preparation of Rifaximin from Rifamycin O and S. More particularly the present invention relates to a process for the preparation of Rifaximin through 3-halorifamycin S. The present invention further relates to a novel polymorph of Rifaximin and process for its preparation.
    Type: Application
    Filed: April 19, 2015
    Publication date: February 9, 2017
    Inventors: Prasada Raju Vetukuri Vnkv, Goverdhan Gilla, Ambaiah Boini, Krishna Prasad Chigurupati
  • NOVEL CRYSTALLINE FORMS OF PEMETREXED TROMETHAMINE SALTS
    Publication number: 20160168153
    Abstract: The present invention is directed to novel crystalline forms of pemetrexed tromethamine salts and processes for preparation thereof.
    Type: Application
    Filed: July 15, 2014
    Publication date: June 16, 2016
    Inventors: Ramesh NADGOUD, Sridhar VASAM, Siva Reddy MAKIREDDY, Goverdhan GILLA, Syam Kumar Unniaran KUNHIMON, Sachin Sharma, Kumara Swamy DORNALA
  • Preparation of ticagrelor
    Patent number: 9233966
    Abstract: Provided are processes for preparing Ticagrelor and its intermediates that are useful in the processes. Also provided are salts of Ticagrelor, their processes and solid dispersion of Ticagrelor having Ticagrelor in amorphous form.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: January 12, 2016
    Assignee: DR. REDDY'S LABORATORIES LIMITED
    Inventors: Vilas Hareshwar Dahanukar, Goverdhan Gilla, Sreenivasulu Kurella, Shweta Mahajan Kulkarni, Raghupathi Reddy Anumula, Sampath Aalla, Yakambram Bojja, Ravi Ram Chandra Sekhar Elati, Veerender Murki, Venkata Annapurna Sasikala Cheemalapati
  • PREPARATION OF TICAGRELOR
    Publication number: 20150073146
    Abstract: Provided are processes for preparing Ticagrelor and its intermediates that are useful in the processes. Also provided are salts of Ticagrelor, their processes and solid dispersion of Ticagrelor having Ticagrelor in amorphous form.
    Type: Application
    Filed: April 5, 2013
    Publication date: March 12, 2015
    Inventors: Vilas Hareshwar Dahanukar, Goverdhan Gilla, Sreenivasulu Kurella, Shweta Mahajan Kulkarni, Raghupathi Reddy Anumula, Sampath Aalla, Yakambram Bojja, Ravi Ram Chandra Sekhar Elati, Veerender Murki, Venkata Annapurna Sasikala Cheemalapati
  • PREPARATION OF PRASUGREL HYDROCHLORIDE
    Publication number: 20130274284
    Abstract: The present application relates to process for the preparation of prasugrel, its pharmaceutically acceptable salts, and its intermediates.
    Type: Application
    Filed: August 2, 2011
    Publication date: October 17, 2013
    Applicants: DR. REDDY'S LABORATORIES, INC., Dr. Reddy's Laboratories Ltd.
    Inventors: Raghupathi Reddy Anumula, Goverdhan Gilla, Sampath Aalla, Dattatray Shamrao Metil, Srinivas Kurella, Kavitha Charagondla
  • PREPARATION OF RANOLAZINE
    Publication number: 20110151258
    Abstract: Preparation of ranolazine and intermediates thereof, for use in pharmaceutical compositions comprising ranolazine.
    Type: Application
    Filed: February 28, 2011
    Publication date: June 23, 2011
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Raghupathi Reddy Anumula, Goverdhan Gilla, Sampath Aalla, Lokeswara Rao Madivada, Prabhaker Macherla, Srinivas Kurella, Kavitha Charagondla, Ramamurthy Kasula, Rajagopala Rao Mandadapu, Krishaniah Charagondla, Malati Vakamulla, Durga Prasad Janaki Bhavanipurapu
  • Process for preparation of celecoxib
    Patent number: 7919633
    Abstract: There is provided a process for preparation of celecoxib by reacting 4,4,4-trifluoro-1-[4-(methyl)phenyl]butane-1,3-dione with 4-sulphonamidophenylhydrazine or its salt in a solvent medium that contains an alkyl ester. There is also provided a process for the purification of celecoxib using aromatic hydrocarbon solvents.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: April 5, 2011
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Raghupathi Reddy Anumula, Goverdhan Gilla, Sampath Alla, Thirupathi Reddy Akki, Yakambram Bojja
  • PROCESS FOR PREPARING SOLIFENACIN AND ITS SALTS
    Publication number: 20090326230
    Abstract: The present invention relates to solifenacin in solid form and a process for its preparation and to a process for the preparation of (1S)-1-Phenyl-1,2,3,4-tetrahydro-isoquinoline, a key intermediate in the synthesis of solifenacin and its salts.
    Type: Application
    Filed: July 18, 2007
    Publication date: December 31, 2009
    Applicants: Dr. Reddy's Laboratories Ltd., Dr. Reddy's Laboratories, Inc.
    Inventors: Vijayavitthal Thippannachar Mathad, Jaydeepkumar Dahyabhai Lilakar, Goverdhan Gilla, Sriramireddy Kikkuru, Raveendra Reddy Chinta, Swaroopa Dudipala
  • PROCESSES FOR PREPARING ZAFIRLUKAST
    Publication number: 20090149662
    Abstract: An improved process for the preparation of substantially pure zafirlukast and pharmaceutical compositions thereof.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 11, 2009
    Inventors: Raghupathi Reddy Anumula, Goverdhan Gilla, Sampath Alla, Sreenivasulu Kurella, Janardana Sarma Ramachandra Kopparapu, Rama Krishna Venkata Medisetti, Srinivasula Reddy Maddula
  • PROCESSES FOR PREPARING PIOGLITAZONE AND ITS PHARMACEUTICALLY ACCEPTABLE SALTS
    Publication number: 20090118514
    Abstract: An improved process for the preparation of pioglitazone and its pharmaceutically acceptable salts by reducing 5-[4-[2-(5-ethyl-2-pyridyl)ethoxy]benzilidene]-2,4-thiazolidinedione with sodium borohydride in presence of a cobalt ion and dimethyl glyoxime. More particularly the cobalt ion used is cobalt chloride hexahydrate, or, cobalt (II) nitrate hexahydrate in presence of mixture of DMF and water as solvents.
    Type: Application
    Filed: November 5, 2008
    Publication date: May 7, 2009
    Inventors: Raghupathi Reddy Anumula, Goverdhan Gilla, Lokeswara Rao Madivada, Prabhakar Macharla, Kavitha Charagondla
  • PROCESS FOR PREPARATION OF CELECOXIB
    Publication number: 20080234491
    Abstract: There is provided a process for preparation of celecoxib by reacting 4,4,4-trifluoro-1-[4-(methyl)phenyl]butane-1,3-dione with 4-sulphonamidophenylhydrazine or its salt in a solvent medium that contains an alkyl ester. There is also provided a process for the purification of celecoxib using aromatic hydrocarbon solvents.
    Type: Application
    Filed: March 19, 2008
    Publication date: September 25, 2008
    Inventors: Raghupathi Reddy Anumula, Goverdhan Gilla, Sampath Alla, Thirupathi Reddy Akki, Yakambram Bojja
  • PROCESS FOR PREPARING CLOPIDOGREL
    Publication number: 20070225320
    Abstract: A process for preparing clopidogrel or a salt thereof.
    Type: Application
    Filed: March 26, 2007
    Publication date: September 27, 2007
    Inventors: Eswaraiah Sajja, Raghupathi Reddy Anumula, Goverdhan Gilla, Lokeswara Rao Madivada
  • PREPARATION OF ALFUZOSIN
    Publication number: 20070066824
    Abstract: A process for preparing alfuzosin or a salt thereof, which minimizes the concentration of an N1-(4-amino-6,7-dimethoxyquinazolin-2-yl)-N1-methyl-N 2-(4-amino-6,7-dimethoxyquinazolin-2-yl)-propane-1,3-diamine impurity in the product.
    Type: Application
    Filed: September 22, 2006
    Publication date: March 22, 2007
    Inventors: Raghupathi Anumula, Sampath Alla, Goverdhan Gilla, Yakambram Bojja
  • ALFUZOSIN HYDROCHLORIDE POLYMORPHS
    Publication number: 20070049756
    Abstract: Alfuzosin hydrochloride crystalline and amorphous polymorphic forms and processes for preparing them.
    Type: Application
    Filed: August 29, 2006
    Publication date: March 1, 2007
    Inventors: Raghupathi Anumula, Sampath Alla, Lokeswara Madivada, Goverdhan Gilla