Patents by Inventor Pratap Reddy

Pratap Reddy 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).

  • A PROCESS FOR PREPARING ABEDITEROL AND INTERMEDIATES THEREOF
    Publication number: 20240140913
    Abstract: The present invention relates to a process for preparation of Abediterol of the Formula (I) or its pharmaceutically acceptable salts, and intermediate compounds including the compound of the Formula (VII) by chiral sulfide mediated epoxidation. The process involves preparation of the intermediate compounds followed by preparation of Abediterol from the intermediate compounds. The compound Abediterol having the formula I is synthesized by various routes from the intermediate compound of Formula (VII). The process is cost effective and gives higher yield and better purity. The process of the present invention uses simple raw materials and reagents; and does not use hypertoxic materials.
    Type: Application
    Filed: February 9, 2022
    Publication date: May 2, 2024
    Applicant: GBR LABORATORIES PRIVATE LIMITED
    Inventors: Pratap Reddy Gaddam, Samhitha Reddy Gaddam, Madaalasa Reddy Gaddam, Udaya Kumar Reddy Mosali
  • Process for preparing beta agonist
    Patent number: 10414717
    Abstract: Disclosed is a process for preparing ?-agonist, 1-(4-amino-3,5-dichlorophenyl)-2-(tert-butylamino) ethanol, of Formula I. The process comprises refluxing 1-(4-amino-3,5-dichlorophenyl) ethanone of Formula II and selenium dioxide in the presence of 1,4-dioxane to form compound of Formula III. Further, compound of Formula III is heated at a temperature below 30° C. in the presence of t-butyl amine to form compound of Formula IV. The compound of Formula IV is treated with sodium borohydride to form compound of Formula I.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: September 17, 2019
    Assignee: Vamsi Lab Ltd.
    Inventors: G Pratap Reddy, M. Kesava Reddy
  • Process for preparing indacaterol and salts thereof
    Patent number: 10227305
    Abstract: The present invention relates to a process for preparing indacaterol or salts thereof. The process comprises of forming compound of Formula 1 by reacting compound of Formula 2 and compound of Formula 3 in the presence of a solvent to Form compound of Formula 4, which on removal of the protecting groups forms compound of Formula 1.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: March 12, 2019
    Inventors: G. Pratap Reddy, Venkataiah Sunku, Sunkaraneni Suresh Babu
  • A PROCESS FOR PREPARING BETA AGONIST
    Publication number: 20190055189
    Abstract: Disclosed is a process for preparing ?-agonist, 1-(4-amino-3,5-dichlorophenyl)-2-(tert-butylamino) ethanol, of Formula I. The process comprises refluxing 1-(4-amino-3,5-dichlorophenyl) ethanone of Formula II and selenium dioxide in the presence of 1,4-dioxane to form compound of Formula III. Further, compound of Formula III is heated at a temperature below 30° C. in the presence of t-butyl amine to form compound of Formula IV. The compound of Formula IV is treated with sodium borohydride to form compound of Formula I.
    Type: Application
    Filed: August 4, 2016
    Publication date: February 21, 2019
    Inventors: G. Pratap REDDY, M. Kesava REDDY
  • Process for preparing olodaterol and intermediates thereof
    Patent number: 10059678
    Abstract: The present invention relates to a process for preparing olodaterol and intermediates thereof. The process comprises of forming compound of Formula 1 by reacting compound of Formula 2 or its acid salt with compound of Formula 3 in the presence of an organic solvent to obtain compound of Formula 4. Protecting groups are removed from compound of Formula 4 in the presence of a suitable solvent to form compound of Formula 1.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: August 28, 2018
    Inventor: G. Pratap Reddy
  • A Process for Preparing Indacaterol and Salts Thereof
    Publication number: 20180215714
    Abstract: The present invention relates to a process for preparing indacaterol or salts thereof. The process comprises of forming compound of Formula 1 by reacting compound of Formula 2 and compound of Formula 3 in the presence of a solvent to Form compound of Formula 4, which on removal of the protecting groups forms compound of Formula 1.
    Type: Application
    Filed: August 20, 2015
    Publication date: August 2, 2018
    Inventor: G. Pratap REDDY
  • A Process for Preparing Olodaterol and Intermediates Thereof
    Publication number: 20170260149
    Abstract: The present invention relates to a process for preparing olodaterol and intermediates thereof. The process comprises of forming compound of Formula 1 by reacting compound of Formula 2 or its acid salt with compound of Formula 3 in the presence of an organic solvent to obtain compound of Formula 4. Protecting groups are removed from compound of Formula 4 in the presence of a suitable solvent to form compound of Formula 1.
    Type: Application
    Filed: September 9, 2014
    Publication date: September 14, 2017
    Inventor: G. Pratap REDDY
  • Processes for the preparation of sitagliptin and pharmaceutically acceptable salts thereof
    Patent number: 8969558
    Abstract: There is provided a process for preparation of sitagliptin of Formula II or a pharmaceutically acceptable salt thereof by deprotection of Formula IX.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: March 3, 2015
    Assignee: Dr. Reddy's Laboratories Limited
    Inventors: Pratap Reddy Padi, Babu Ireni, Srinivas Polavarapu, Shailaja Padamata, Kavitha Nerella, Vijaya Anand Ramasamy, Ranga Reddy Vangala
  • PROCESSES FOR THE PREPARATION OF SITAGLIPTIN AND PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF
    Publication number: 20140128607
    Abstract: There is provided salts and polymorphs of sitagliptin, processes for the preparation thereof, and pharmaceutical compositions comprising the same.
    Type: Application
    Filed: December 5, 2013
    Publication date: May 8, 2014
    Applicants: Dr. Reddy's Laboratories, Inc., Dr. Reddy's Laboratories Limited
    Inventors: Pratap Reddy Padi, Babu Ireni, Srinivas Polavarapu, Shailaja Padamata, Kavitha Nerella, Vijaya Anand Ramasamy, Ranga Reddy Vangala
  • Processes for the preparation of sitagliptin and pharmaceutically acceptable salts thereof
    Patent number: 8309724
    Abstract: There is provided an improved process for the preparation of Sitagliptin of Formula II by reduction of compound of Formula VIII to Formula IX followed by deprotection of Formula IX to afford Sitagliptin of Formula II.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: November 13, 2012
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Incorporated
    Inventors: Pratap Reddy Padi, Babu Ireni, Srinivas Polavarapu, Shailaja Padamata, Kavitha Nerella, Vijaya Anand Ramasamy, Ranga Reddy Vangala
  • PROCESSES FOR THE PREPARATION OF SITAGLIPTIN AND PHARMACEUTICLLY ACCEPTABLE SALTS THEREOF
    Publication number: 20100274017
    Abstract: There is provided salts and polymorphs of sitagliptin, processes for the preparation thereof, and pharmaceutical compositions comprising the same.
    Type: Application
    Filed: December 18, 2008
    Publication date: October 28, 2010
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Pratap Reddy Padi, Babu Ireni, Srinivas Polavarapu, Shailaja Padamata, Kavitha Nerella, Vijaya Anand Ramasamy, Ranga Reddy Vangala
  • PROCESSES FOR THE PREPARATION OF PRASUGREL , AND ITS SALTS AND POLYMORPHS
    Publication number: 20100261908
    Abstract: Processes for the preparation of prasugrel and its pharmaceutically acceptable salts thereof. Also disclosed are polymorphic forms of prasugrel hydrochloride and processes for their preparation.
    Type: Application
    Filed: November 7, 2008
    Publication date: October 14, 2010
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Pratap Reddy Padi, Seetha Rama Sarma Peri, Madhusudhan Reddy Ganta, Srinivas Polavarapu, Praveen Cherukupally, Babu Ireni, Shailaja Padamata, Krishna Jonnada, Krishna Vinigari, Kavitha Nerella
  • Process for preparing valsartan
    Patent number: 7659406
    Abstract: A process for preparing valsartan.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: February 9, 2010
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Pratap Reddy Padi, Satya Narayana Bollikonda, Ananda Mohan Jasty, Suma Latha Yasareni, Vishal Dayaram Parmar
  • PROCESS FOR PREPARING IRBESARTAN
    Publication number: 20090286990
    Abstract: A process for preparing irbesartan comprises pentanoylation of cycloleucine in the presence of sodium hydroxide to form n-pentanoyl cycloleucine, condensing this product with 2-(4-aminomethyl phenyl) benzonitrile using dicyclohexyl carbodiimide and 1-hydroxy benzotriazole as a catalyst to form the 4-(&quest-N-pentanoyl amino) cyclopentamido methyl-2?-cyano biphenyl compound, and then cyclizing using trifluoroacetic acid in the presence of an aromatic solvent to form cyano irbesartan. Cyano irbesartan is converted to irbesartan by reaction with tributyltin chloride and sodium azide in the presence of an aromatic solvent.
    Type: Application
    Filed: May 20, 2005
    Publication date: November 19, 2009
    Inventors: Reguri Buchi Reddy, Sunkari Sudhakar, Chaganti Sridhar, Somisetti Narender Rao, Sundaram Venkataraman, Padi Pratap Reddy, Bollikonda Satyanarayana
  • ARIPIPRAZOLE CO-CRYSTALS
    Publication number: 20090054455
    Abstract: Co-crystals comprising aripiprazole and fumaric acid.
    Type: Application
    Filed: February 2, 2007
    Publication date: February 26, 2009
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Surya Narayana Devarakonda, Krishnamurthi Vyas, Sivakumar Reddy Bommareddy, Pratap Reddy Padi, Balaji Raghupathy
  • PREPARATION OF PALIPERIDONE
    Publication number: 20090048272
    Abstract: Processes for preparing paliperidone.
    Type: Application
    Filed: August 15, 2008
    Publication date: February 19, 2009
    Inventors: Pratap Reddy Padi, Satyanarayana Bollikonda, Surya Prabhakar Akundi, Praveen Cherukupally, Sashikanth Suthrapu, Saravanan Mohanarangam, Venkat Kiran Kandirelli, Malleswara Rao Chellu, Narasimha Rao Pagadala
  • Preparation of Montelukast
    Publication number: 20080214823
    Abstract: A process for preparing amorphous montelukast sodium comprises removing solvent from a solution comprising montelukast sodium using agitated thin film drying.
    Type: Application
    Filed: July 20, 2006
    Publication date: September 4, 2008
    Applicant: Dr. Reddy's Laboratories Ltd.
    Inventors: Pratap Reddy Padi, Satyanarayana Bollikonda, Alok Kumar Srivastava, Ravi Kumar Kasturi, Rajender Reddy Jinna, Narsimha Naidu Mopidevi
  • Removal of arsenic from water with oxidized metal coated pumice
    Publication number: 20070017871
    Abstract: The current invention is concerned with methods and compositions for the removal of arsenic contamination from water. A method for binding As to oxidized metal coated pumice and method for making the same are disclosed. Water filters comprising oxidized metal coated pumice, such as oxidized iron coated pumice, are also provided.
    Type: Application
    Filed: May 13, 2006
    Publication date: January 25, 2007
    Inventors: Pratap Reddy, Charles Turner
  • Apparatus for purification of industrial wastewater with thin film fixed bed TiO2 photocatalyst
    Publication number: 20040182792
    Abstract: An apparatus for the photocatalyitc oxidation of common industrial effluent contaminants in aqueous solution includes a reactor and a thin film photocatalyst fixed to a support material like Cuddapah stone. The support material is preferably an inert material. The TiO2 preformed does not contain any adsorbent for making the thin film photocatalyst, The catalytic runs were carried out over TiO2 thin film fixed bed reactor. The study is extended to the immobilization of preformed TiO2 with a binder for making thin film using a simple spray technique on inert Cuddapah stone. This method of immobilization require no thermal treatment of the catalyst at high temperatures. The method is applicable for the photocatalytic treatment of industrial effluents at a higher scale. Also it is a method for preparing a photocatalyst adopted for the oxidation of industrial common effluent by simple spray technique.
    Type: Application
    Filed: March 20, 2003
    Publication date: September 23, 2004
    Inventors: Machiraju Subrahmanyam, Pierre Boule, Durga Kumari Valluri, Maddigapu Pratap Reddy, Mohammed Noorjahan, Kondapuram Vijaya Raghavan