Patents Assigned to Natco Pharma Limited
  • Patent number: 11845811
    Abstract: The present invention provides an improved process for the preparation of Sugammadex sodium of formula (I) having more than 98.5% purity along with less than 1.0% monohydroxy Sugammadex sodium and less than 0.15% any other known or unknown impurities by HPLC.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: December 19, 2023
    Assignee: NATCO PHARMA LIMITED
    Inventors: Vanga Prabhakar, Baddula Saidulu, Kotte Rajashekar, Peddi Rajasekhara Reddy, Vuppalapati Naga Vasanta Srinivasu, Konduri Srinivasa Krishna Murthy, Budideti Shankar Reddy, Muddasani Pulla Reddy, Nannapaneni Venkaiah Chowdary
  • Patent number: 11730753
    Abstract: The present invention relates to pharmaceutical compositions comprising trifluridine and tipiracil hydrochloride. More particularly, the present invention relates to a tablet composition comprising trifluridine, tipiracil hydrochloride and one or more pharmaceutically acceptable excipients and process for preparing such compositions.
    Type: Grant
    Filed: March 2, 2019
    Date of Patent: August 22, 2023
    Assignee: Natco Pharma Limited
    Inventors: Tripuraneni Rama Swamy Chowdary, Bhavanasi Krishna Murthy, Yedluri Siddhartha, Bhat Pavan, Nannapaneni Venkaiah Chowdary
  • Patent number: 11576917
    Abstract: The present invention relates to pharmaceutical compositions comprising Ibrutinib. More particularly, the present invention relates to a tablet composition comprising Ibrutinib and one or more pharmaceutically acceptable excipients and process for preparing such compositions.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: February 14, 2023
    Assignee: NATCO PHARMA LIMITED
    Inventors: Vattikuti Satyanarayana, Bhavanasi Krishna Murthy, Yalamanchalli Naveen Krishna, Bhat Pavan, Nannapaneni Venkaiah Chowdary
  • Patent number: 11498902
    Abstract: The present invention relates to an improved process for the preparation of N-(4-(6,7-dimethoxyquinolin-4-yloxy)phenyl)-N?-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide compound of formula-1 which is represented by the following structural formula:
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: November 15, 2022
    Assignee: NATCO PHARMA LIMITED
    Inventors: Kompella Amala, Gampa Venugopala Krishna, Annadasu Ankamanayudu, Ganganamoni Srinivasulu, Konakanchi Durga Prasad, Muddasani Pulla Reddy, Nannapaneni Venkaiah Chowdary
  • Patent number: 11465988
    Abstract: The present invention provides a process for the preparation of Tipiracil HCl of Formula (I) and intermediate thereof with improved yields and purities.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: October 11, 2022
    Assignee: NATCO PHARMA LIMITED
    Inventors: Srinivasulu Sakkani, Uma Naresh Babu Kotra, Dharmender Ragidi, Buchappa Gongalla, Durga Prasad Konakanchi, Pulla Reddy Muddasani, Venkaiah Chowdary Nannapaneni
  • Patent number: 11452722
    Abstract: The present invention relates to pharmaceutical compositions comprising Lenalidomide. More particularly, the present invention relates to a stable composition comprising anhydrous Lenalidomide Form I and one or more pharmaceutically acceptable excipients and process for preparing such compositions.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: September 27, 2022
    Assignee: NATCO PHARMA LIMITED
    Inventors: Vattikuti Satyanarayana, Bhavanasi Krishna Murthy, Vemuri Venkata Suresh Babu, Bhat Pavan, Nannapaneni Venkaiah Chowdary
  • Publication number: 20220056016
    Abstract: The present invention provides a process for the preparation of Tipiracil HCl of Formula (I) and intermediate thereof with improved yields and purities.
    Type: Application
    Filed: December 13, 2019
    Publication date: February 24, 2022
    Applicant: NATCO PHARMA LIMITED
    Inventors: Srinivasulu SAKKANI, Uma Naresh Babu KOTRA, Dharmender RAGIDI, Buchappa GONGALLA, Durga Prasad KONAKANCHI, Pulla Reddy MUDDASANI, Venkaiah Chowdary NANNAPANENI
  • Patent number: 11111228
    Abstract: The present invention is related to an improved process for the preparation of Pomalidomide with higher yields and high purity. Particularly the present invention relates to form A preparation of Pomalidomide and its purification. wherein the present process doesn't involve use of dioxane solvent and avoids higher temperatures.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: September 7, 2021
    Assignee: Natco Pharma Limited
    Inventors: Durga Prasad Konakanchi, Buchappa Gongalla, Dharmendher Ragidi, Uma Naresh Babu Kotra, Kali Satya Bhujanga Rao Adibhatla, Venkaiah Chowdary Nannapaneni
  • Patent number: 11091470
    Abstract: Present invention relates to an improved process for the preparation of N—(3-ethynylphenyl)-7-methoxy-6-(3-morpholinopropoxy) quinazolin-4-amine dihydrochloride of formula-I.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: August 17, 2021
    Assignee: NATCO PHARMA LIMITED
    Inventors: Pulla Reddy Muddasani, Shankar Reddy Budideti, Srinivasa Krishna Murthy Konduri, Nagalingam Samatham, Venkaiah Chowdary Nannapaneni
  • Patent number: 11008296
    Abstract: The present invention relates to novel intermediates of Eribulin and process for the preparation of the same. The process of the present invention is commercially viable and can be easily adopted for plant scale operations. The present invention relates to tetrahydrofuran compounds of formula I, X, XI, D and B.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: May 18, 2021
    Assignee: Natco Pharma Limited
    Inventors: Bulli Babi Vipparla, Sreenivas Nagapuri, Sathaiah Kandula, Janaki Rama Rao Ravi, Durga Prasad Konakanchi, Pulla Reddy Muddasani, Venkaiah Chowdary Nannapaneni
  • Patent number: 10966971
    Abstract: The invention relates to pharmaceutical compositions of pomalidomide comprising pomalidomide and binder or filler at amount of at most 89% weight percent of total weight of the composition and process for the preparation of such compositions.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: April 6, 2021
    Assignee: Natco Pharma Limited
    Inventors: Satyanarayana Vattikuti, Krishna Murthy Bhavanasi, Naveen Krishna Yalamanchalli, Venkaiah Chowdary Nannapaneni
  • Patent number: 10870650
    Abstract: The present invention relates to a process for the preparation of stable and 5 pure amorphous form of Idelalisib. Further, the present process is simple, more economical, cost effective and efficient method of manufacturing that is suitable for industrial scale-up having a high degree of chromatographic purity.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: December 22, 2020
    Assignee: NATCO PHARMA LIMITED
    Inventors: Amala Kompella, Sreenivas Rachakonda, Venugopala Krishna Gampa, Subhash Kusumba, Durga Prasad Konakanchi, Pulla Reddy Muddasani, Venkaiah Chowdary Nannapaneni
  • Patent number: 10800771
    Abstract: The present invention is related to an improved process for the preparation of dasatinib anhydrous crystalline Neat form N-6 with high purity and high yield. The present invention also relates to purification of dasatinib crystalline Neat form N-6.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: October 13, 2020
    Assignee: NATCO PHARMA LIMITED
    Inventors: Durga Prasad Konakanchi, Buchappa Gongalla, Uma Naresh Babu Kotra, Srinivasulu Sakkani, Dharmender Ragidi, Kotayyababu Sikha, Venkaiah Chowdary Nannapaneni
  • Patent number: 10626117
    Abstract: The present invention relates to an improved process for the preparation of Ibrutinib with high purity and high yields. The present process is cost effective and feasible in large scale production also. The present process avoids the mitsunobu reagent conditions also. The present Invention also relates to a process for the preparation of Crystalline form A and Crystalline form C of Ibrutinib.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: April 21, 2020
    Assignee: NATCO PHARMA LIMITED
    Inventors: Pulla Reddy Muddasani, Shankar Reddy Budideti, Veerababu Madalapu, Anitha Gattu, Bala Ankireddy Konda, Venkaiah Chowdary Nannapaneni
  • Patent number: 10604505
    Abstract: The present invention is related to an improved process for the preparation of Ceritinib with high yield and high purity. The present process is cost effective and feasible in large scale production also. The present invention also related to a stable amorphous form of Ceritinib and its preparation. The present invention also relates to a process for the preparation of Crystalline form A of Ceritinib.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: March 31, 2020
    Assignee: Natco Pharma Limited
    Inventors: Durga Prasad Konakanchi, Subba Rao Pula, Muni Bhaskar Pallooru, Radha Rani Samatham, Ramakrishna Pilli, Lakshmana Viswa Venkata Pavan Kumar Maddula, Sandeep Karnam, Pulla Reddy Muddasani, Kali Satya Bhujanga Rao Adibhatla, Venkaiah Chowdary Nannapaneni
  • Patent number: 10106554
    Abstract: The present invention relates to novel series of substituted 7-(morpholinyl)-2-(N-piperazinyl)-methyl thieno [2, 3-c] pyridines of the following structure of formula I. Where in R1, R2, R3 and R4 are defined.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: October 23, 2018
    Assignee: NATCO PHARMA LIMITED
    Inventors: Durga Prasad Konakanchi, Subba Rao Pula, Rama Krishna Pilli, Lakshmana Viswa Venkata Pavan Kumar Maddula, Srinivasa Krishna Murthy Konduri, Janaki Rama Rao Ravi, Naga Vasanta Srinivasu Vuppalapati, Sandeep Kumar Thoota, Pulla Reddy Muddasani, Kali Satya Bhujanga Rao Adibhatla, Venkaiah Chowdary Nannapaneni
  • Patent number: 10047088
    Abstract: The present invention relates to novel antiproliferative 1H-1, 8-naphthyridin-2-ones of the general formula (I) or pharmaceutically acceptable salts thereof: In which the variable groups are as defined herein, and their preparation and use in therapeutic treatment of disorders related to inhibition of tyrosine kinases in warm blooded animals. The compounds can overcome imatinib induced drug resistance.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: August 14, 2018
    Assignee: NATCO PHARMA LIMITED
    Inventors: Amala Kompella, Venugopala Krishna Gampa, Srinivasulu Ganganamoni, Balakrishna Reddy Sirigireddy, Kali Satya Bhujanga Rao Adibhatla, Venkaiah Chowdary Nannapaneni
  • Patent number: 10040778
    Abstract: Anhydrous polymorphic form-I of anti cancer drug, Lenalidomide whose chemical name is 3-(4-amino-1-oxo-1,3-dihydro-isoindole-2-yl)-piperidine-2,6-dione, is disclosed. Alternate methods for making anhydrous polymorphic form-I of Lenalidomide are also disclosed.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: August 7, 2018
    Assignee: NATCO PHARMA LIMITED
    Inventors: Durga Prasad Konakanchi, Buchappa Gongalla, Kotayya Babu Sikha, Chandrasekar Kandaswamy, Kali Satya Bhujanga Rao Adibhatla, Venkaiah Chowdary Nannapaneni
  • Patent number: 9895367
    Abstract: An oral pharmaceutical formulation containing an effective amount of NRC-AN-019 including its pharmaceutically acceptable salts and polymorphs such as Form I, Form II and Form III thereof to improve the bioavailability intended for self-emulsification upon its contact with the gastro-intestinal fluid. The invention also relates to a process for the preparation of oral solution containing NRC-AN-019 in an effective concentration for the better therapy against Chronic Myeloid Leukemia as BCR-ABL tyrosine kinase inhibitor and against other tumors such as head and neck cancer, prostate cancer and the like.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: February 20, 2018
    Assignee: NATCO PHARMA LIMITED
    Inventors: Durga Maheswari Parvataneni, Siddhartha Yedluri, Venkata Satyanarayana Appadwedula, Kali Satya Bhujanga Rao, Venkaiah Chowdary Nannapaneni
  • Patent number: 9765072
    Abstract: The present invention relates to novel antiproliferative 1H-1, 8-naphthyridin-2-ones of the general formula (I) or pharmaceutically acceptable salts thereof: In which the variable groups are as defined herein, and their preparation and use in therapeutic treatment of disorders related to inhibition of tyrosine kinases in warm blooded animals. The compounds can overcome imatinib induced drug resistance.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: September 19, 2017
    Assignee: NATCO PHARMA LIMITED
    Inventors: Amala Kompella, Venugopala Krishna Gampa, Srinivasulu Ganganamoni, Balakrishna Reddy Sirigireddy, Kali Satya Bhujanga Rao Adibhatla, Venkaiah Chowdary Nannapaneni