Patents by Inventor Janaki Rama Rao RAVI

Janaki Rama Rao RAVI 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 ribociclib succinate and its novel crystalline forms thereof
    Patent number: 11414421
    Abstract: The present invention relates to an improved process for the preparation of 7-cyclopentyl-N,N-dimethyl-2-{[5-(piperazin-1-yl)pyridin-2-yl]amino}-7H-pyrrolo[2,3-d]pyrimidine-6-carboxamide succinate (1/1) compound of formula-1a and its novel crystalline forms.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: August 16, 2022
    Assignee: NATCO PHARMA LTD
    Inventors: Arunkumar Thiriveedhi, Swapna Kondaveeti, Sathish Thumati, Naresh Ghanta, Janaki Rama Rao Ravi, Durga Prasad Konakanchi, Pulla Reddy Muddansani, Venkaiah Chowdary Nannapaneni
  • Intermediates for the preparation of eribulin thereof
    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
  • AN IMPROVED PROCESS FOR THE PREPARATION OF RIBOCICLIB SUCCINATE AND ITS NOVEL CRYSTALLINE FORMS THEREOF
    Publication number: 20210122754
    Abstract: The present invention relates to an improved process for the preparation of 7-cyclopentyl-N,N-dimethyl-2-{[5-(piperazin-1-yl)pyridin-2-yl]amino}-7H-pyrrolo[2,3-d]pyrimidine-6-carboxamide succinate (1/1) compound of formula-1a and its novel crystalline forms.
    Type: Application
    Filed: January 10, 2019
    Publication date: April 29, 2021
    Inventors: Arunkumar THIRIVEEDHI, Swapna KONDAVEETI, Sathish THUMATI, Naresh GHANTA, Janaki Rama Rao RAVI, Durga Prasad KONAKANCHI, Pulla Reddy MUDDASANI, Venkaiah Chowdary NANNAPANENI
  • INTERMEDIATES FOR THE PREPARATION OF ERIBULIN THEREOF
    Publication number: 20200299248
    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: Application
    Filed: November 20, 2018
    Publication date: September 24, 2020
    Inventors: Bulli Babi VIPPARLA, Sreenivas NAGAPURI, Sathaiah KANDULA, Janaki Rama Rao RAVI, Durga Prasad KONAKANCHI, Pulla Reddy MUDDASANI, Venkaiah Chowdary NANNAPANENI
  • 7-(morpholinyl)-2-(N-piperazinyl) methyl thieno [2, 3-C] pyridine derivatives as anticancer drugs
    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
  • 7-(MORPHOLINYL)-2-(N-PIPERAZINYL) METHYL THIENO [2, 3-C] PYRIDINE DERIVATIVES AS ANTICANCER DRUGS
    Publication number: 20170320891
    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: Application
    Filed: December 11, 2014
    Publication date: November 9, 2017
    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