Patents Assigned to Dr. Reddy's Laboratories Inc.
  • PREPARATION OF APREPITANT
    Publication number: 20110094321
    Abstract: A process for preparing aprepitant.
    Type: Application
    Filed: October 6, 2006
    Publication date: April 28, 2011
    Applicants: DR. REDDY'S LABORATORIES LIMITED, DR. REDDY'S LABORATORIES, INC.
    Inventors: Pravinchandra Jayantilal Vankawala, Ravi Ram Chandrasekhar Elati, Naveen Kumar Kolla, Subrahmanyeswara Rao Chlamala, Srinivas Gangula
  • PURIFICATION OF MODIFIED CYTOKINES
    Publication number: 20110098452
    Abstract: The invention provides an efficient method of purification of a modified cytokine. The process includes the use of a chromatographic technique for the purification of the desired cytokine. The purified cytokine can be used as a therapeutic composition.
    Type: Application
    Filed: June 23, 2009
    Publication date: April 28, 2011
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Chaiti Roy, Darshan Koticha, A. Vivek
  • COMBINATIONS OF NIACIN AND AN OXICAM
    Publication number: 20110086074
    Abstract: Pharmaceutical formulations comprising a combination of niacin and an oxicam NSAID, for oral administration, and methods of preparing the formulations.
    Type: Application
    Filed: June 2, 2009
    Publication date: April 14, 2011
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Pradeep Jairao Karatgi, Thilek Kumar Muniyappan, Shantanu Yeshwant Damle, Sesha Sai Marella, Harshal Prabhakar Bhagwatwar, Raviraj Sukumar Pillai, Ish Kumar Khanna
  • 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
  • ATORVASTATIN COMPOSITIONS
    Publication number: 20110064816
    Abstract: Compositions containing atorvastatin, including its pharmaceutically acceptable salts, solvates, hydrates, enantiomers, polymorphs and their mixtures, and processes for preparing the same. Further aspects relate to pharmaceutical formulations comprising compositions containing atorvastatin, or a salt thereof, processes for preparing the same, and their methods of use, treatment and administration.
    Type: Application
    Filed: May 13, 2009
    Publication date: March 17, 2011
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Alagarsamy Alagumurugan, Rakesh Kumar Bhasin, Harshal Prabhakar Bhagwatwar, Rizwan Zafar, Saptarshi Nath, Ranadeep Paramananda Bokalial, Lakshmi Prasanna Gubbala, Venkata Nookaraju Sreedharala, Amarjit Maharaj Giri, Pradeep Jairao Karatgi, Sanjay Chhagan Wagh, Ravi Pillai, Kaushik Atul, Varghese Bency
  • PREPARATION OF MONTELUKAST AND ITS SALTS
    Publication number: 20110040095
    Abstract: Processes for preparing montelukast acid and its salts.
    Type: Application
    Filed: March 17, 2009
    Publication date: February 17, 2011
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Satyanarayana Bollikonda, Kirankumar Venkata Kandirelli, Rama Krishna Venkata Medisetti, Janardana Sarma Ramachandra Kopparapu, Kushal Surajmal Manudhane
  • DEXLANSOPRAZOLE PROCESS AND POLYMORPHS
    Publication number: 20110028518
    Abstract: Processes for the preparation of dexlansoprazole, an amorphous form of dexlansoprazole, a solid dispersion of amorphous dexlansoprazole and a pharmaceutically acceptable carrier, and processes for their preparation. Also provided are crystalline compounds 2-[(R)-[(4-chloro-3-methyl-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole and 2-[(R)-[(4-nitro-3-methyl-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole, and methods for their preparation.
    Type: Application
    Filed: March 18, 2009
    Publication date: February 3, 2011
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Naveen Kumar Kolla, Nagaraju Manne, Srinivas Gangula, Udaykumar Neelam, Anitha Naredla, Sudhakar Reddy Baddam, Sumeet Vishwasrao Patil, Arjunkumar Tummala, Subbareddy Peddireddy, Sachin Gulabrao Shinde, Ashok Sigala, Satish Varma Mudunuru, Madhu Kiran Tummidi
  • PREPARATION OF LENALIDOMIDE
    Publication number: 20110021567
    Abstract: Processes for the preparation of substantially pure lenalidomide. The application also relates to an enriched, substantially pure, and pure amorphous form of lenalidomide and solid dispersions containing amorphous lenalidomide.
    Type: Application
    Filed: March 11, 2009
    Publication date: January 27, 2011
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Surya Narayana Devarakonda, Sesha Reddy Yarraguntla, Vamsi Krishna Mudapaka, Rajasekhar Kadaboina, Veerender Murki, Amarendhar Manda, Venkata Rao Badisa, Naresh Vemula, Rama Seshagiri Rao Pulla, Venu Nalivela
  • SOLUBILITY-ENHANCED FORMS OF APREPITANT AND PHARMACEUTICAL COMPOSITIONS THEREOF
    Publication number: 20110009362
    Abstract: Solubility-enhanced forms of aprepitant and processes for preparing such forms. The invention also provides solubility-enhanced forms of aprepitant that also possess stability against solid state conversions. Certain solubility-enhanced forms of aprepitant comprise a cyclodextrin or any of its derivatives. Other solubility-enhanced forms of aprepitant comprise fine particle preparations of aprepitant. The invention further provides non-nanoparticulate pharmaceutical formulations prepared using solubility-enhanced forms of aprepitant. The invention also provides taste-masked and orally disintegrating pharmaceutical formulations comprising aprepitant. Further, pharmaceutical formulations comprising solubilityenhanced forms of aprepitant and processes of preparation of such formulations, as well as methods of using them are provided.
    Type: Application
    Filed: February 27, 2009
    Publication date: January 13, 2011
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Mahendra Ramachandra Joshi, Nithya Radhakrishnan, Munish Kumar Dhiman, Pradeep Jairao Karatgi, Sanjay Chhagan Wagh, Raviraj Sukumar Pillai, Harshal Prabhakar Bhagwatwar, Venkata Nookaraju Sreedharala
  • APREPITANT POLYMORPH MIXTURES
    Publication number: 20100298327
    Abstract: Intimate mixtures of aprepitant crystalline Form I and crystalline Form II, having specific Hweight ratios of the forms.
    Type: Application
    Filed: March 29, 2007
    Publication date: November 25, 2010
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Vijayavitthal Thippannachar Mathad, Pravinchandra Jayantilal Vankawala, Raviram Chandrasekhar Elati, Prabhakar Macharla, Srinivas Gangula, Naveen Kumar Kolla, Ravi Kumar Komareddy, Surya Narayana Devarkonda, Subbareddy Peddireddy
  • PROCESS FOR PREPARING (2R,3S/2S,3R)-2-(2,4-DIFLUOROPHENYL)-3-(5-FLUOROPYRIMIDIN-4-YL)-1-(1H-1,2,4-TRIAZOL-1-YL)BUTAN-2-OL
    Publication number: 20100292473
    Abstract: Voriconazole is prepared by a process comprising condensing 1-(2,4-difluorophenyl)-2-(1H-1,2,4-triazole-1-yl)ethanone with 4-chloro-6-ethyl-5-fluoropyrimidine, in a ketone, ether, aliphatic hydrocarbon, or aromatic hydrocarbon solvent, to give (2R,3S/2S,3R)-3-(4-chloro-5-fluoropyrimidin-6-yl)-2-(2,4-diflurophenyl)-1-(1H-1,2,4-triazole-1-yl)butan-2-ol.
    Type: Application
    Filed: June 10, 2010
    Publication date: November 18, 2010
    Applicants: DR. REDDY'S LABORATORIES LIMITED, DR. REDDY'S LABORATORIES, INC.
    Inventors: Venkataraman Sundaram, Venkata Bhaskara Rao Uppala, Surya Prabhakar Akundi, Venkateswarlu Muvva, Vijayawardhan Chitta, Alekhya Donthula, Manoj Ramesh Kharkar, Surya Narayana Devarakonda, Subba Reddy Peddireddy
  • Method for analyzing activated polyethylene glycol compounds
    Patent number: 7824919
    Abstract: A chemical analysis method for the determination of RO(CH2CH2O)nH, RO(C2H4O)nA, and AO(C2H4O)nA in a mixture thereof, wherein R is an alkyl group, A is a functional group for coupling with a surface or a biologically active material or another thing of use and n is an integer greater than 10. The method includes the step of chromatographing a sample of the mixture by liquid chromatography under critical conditions to determine the relative amounts of RO(CH2CH2O)n H, RO(C2H4O)nA, and AO(C2H4O)nA in the mixture. In addition a chemical analysis method for the determination of RO(CH2CH2O)nH, RO(C2H4O)nA, and AO(C2H4O)nA in a mixture thereof, wherein R is an alkyl group, A is a functional group for coupling with a biologically active material and n is an integer greater than 10. The method includes two steps.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: November 2, 2010
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Ross A. Wallingford, Maciej Turowski
  • 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
  • Method for making polyethylene glycol carbonates
    Patent number: 7816484
    Abstract: A method for preparing a polyalkylene glycol carbonate is disclosed comprising reacting a hydroxyl functional polyalkylene glycol and a reagent selected from carbonates and chloroformates in the presence of an aromatic solvent and an amine.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: October 19, 2010
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventor: Daniel E. Verral
  • 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
  • PHARMACEUTICAL FORMULATIONS COMPRISING TELMISARTAN AND HYDROCHLOROTHIAZIDE
    Publication number: 20100247649
    Abstract: Pharmaceutical tablets comprising a first layer formulated for immediate release of telmisartan from a dissolving matrix and a second layer formulated for immediate release of hydrochlorothiazide from a dissolving matrix, methods for producing tablets and methods of use for treating hypertension.
    Type: Application
    Filed: October 30, 2008
    Publication date: September 30, 2010
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Uma Devi Palaparthi, Ashutosh Rout, Maheswara Reddy Arumalla
  • BORTEZOMIB AND PROCESS FOR PRODUCING SAME
    Publication number: 20100226597
    Abstract: The present application provides a process for the preparation of Bortezomib, its intermediates and process for crystalline forms of Bortezomib.
    Type: Application
    Filed: September 12, 2008
    Publication date: September 9, 2010
    Applicants: DR. REDDY'S LABORATORIES LIMITED, DR. REDDY'S LABORATORIES, INC.
    Inventors: Raghavendracharyulu Venkata Palle, Rajasekhar Kadaboina, Veerendeer Murki, Amarendhar Manda, Nageshwar Gunda, Ramaseshagiri Rao Pulla, Mallesha Hanmanthu, Narasimha Naidu Mopidevi, Suresh Kumar Ramdoss
  • Polymorphic forms of ziprasidone and its hydrochloride salt and process for preparation thereof
    Patent number: 7790886
    Abstract: The present invention is related to crystalline forms of ziprasidone and its hydrochloride salt and an amorphous form of ziprasidone hydrochloride and the process for the preparation thereof. The crystalline forms and amorphous form of the invention are suitable for pharmaceutical purposes in the treatment of psychosis. The processes of the invention are simple, non-hazardous and commercially suitable.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: September 7, 2010
    Assignees: Dr. Reddy's Laboratories, Inc., Dr. Reddy's Laboratories Limited
    Inventors: Manne Satyanarayana Reddy, Thirumalai Rajan Srinivasan, Venka Bhaskara Rao Uppala, Mummadi Venkatesh, Akundi Surya Prabhakar
  • O-DESMETHYLVENLAFAXINE
    Publication number: 20100210719
    Abstract: Processes for preparing desvenlafaxine and stable amorphous O-desmethylvenlafaxine succinate solid dispersions with one or more pharmaceutically acceptable carriers.
    Type: Application
    Filed: July 10, 2008
    Publication date: August 19, 2010
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Surya Narayana Devarakonda, Sesha Reddy Yarraguntla, Venu Nalivela, Ram Thaimattam, Subbareddy Peddireddy, Balaji Raghupati, Mohammed Azeezulla Baig, Srinivas Reddy Gade, Srinivas Reddy Mallepalli, Vijaywardhan Chitta, Satyanarayana Bollikonda, Saravanan Mohanarangam, Rajasekhar Kadaboina
  • Ziprasidone process
    Patent number: 7777037
    Abstract: A process for preparing ziprasidone having low levels of keto ziprasidone and hydroxy ziprasidone impurities.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: August 17, 2010
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Sundaram Venkataraman, Uppala Venkata Bhaskara Rao, Venkateswarlu Muvva, Vijayawardhan Chitta