Patents by Inventor Ravishanker Kovi

Ravishanker Kovi 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).

  • Publication number: 20210169873
    Abstract: Ready-to-use liquid parenteral formulations are provided that include trabectedin, at least one of a pharmaceutically acceptable solvent, and at least one pharmaceutically acceptable excipient or adjuvant.
    Type: Application
    Filed: October 21, 2020
    Publication date: June 10, 2021
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Swaminathan Ramamurthy, Baskaran Ayyanar, Ramesh Pawar, Gaurav Yadav, Ronak Patel, Dixit Panchal, Rhagu Kasu, Bhavesh Panchal
  • Publication number: 20210139518
    Abstract: The present application generally provides ferric maltol of formula I, and more particularly a crystalline form alfa of Ferric maltol, which is characterized by its PXRD pattern as illustrated herein. Corresponding methods for producing the ferric maltol disclosed herein are also provided.
    Type: Application
    Filed: October 26, 2020
    Publication date: May 13, 2021
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Ananda Babu Thirunavakarasu, Hemant Mande, Rajesh A. Patel
  • Publication number: 20210094984
    Abstract: Methods for preparing degarelix acetate are provided that include the steps of providing a suitable resin; deprotecting the resin with a diethylenetriamine solution; reacting sequentially the deprotected resin with different Fmoc protected amino acids ;deprotecting the amino acid in each sequence with a diethylenetriamine solution in a stepwise fashion to yield a degarelix crude compound; and purifying the degarelix crude compound to yield pharmaceutically acceptable degarelix acetate.
    Type: Application
    Filed: September 15, 2020
    Publication date: April 1, 2021
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Sai Saisuryanarayana Donthukurthi, Shivam Saroj, Piyush Fadadu, Srikrishna Apar, Sandeep Aher, Veerabhadra Rao Bobbili
  • Publication number: 20210069187
    Abstract: A stable pharmaceutical composition of Selexipag is provided that includes a Selexipag-Mannitol pre mix and excipients. The present application relates to stable pharmaceutical compositions that include Selexipag which are suitable for oral administration. In particular, the application relates to pharmaceutical compositions of Selexipag in which acid impurity is less than 1% w/w. The application also relates to processes for making such compositions and use thereof in treating patients with pulmonary arterial hypertension.
    Type: Application
    Filed: June 5, 2020
    Publication date: March 11, 2021
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Raghu Kasu, Thupalli Ajeykumar Reddy, Devyani Dube, Vamshi Yekkanti
  • Publication number: 20210040107
    Abstract: The present application provides improved processes for the synthesis of eribulin intermediate, which generally comprise the steps of: a) De-protecting the eribulin-enone (compound 1) in tetrahydrofuran by using TBAF solution, buffered with imidazole HCl in the presence of molecular sieve and sodium sulphate to get an insitu mixture of eribulin-dione diastereomer at C12 carbon (compound 2). Then ketalization may be performed of eribulin-dione insitu intermediate containing mixture of diastereomer at C12 carbon (compound 2) with PPTS in dichloromethane to yield eribulin-diol (compound 3).
    Type: Application
    Filed: June 11, 2020
    Publication date: February 11, 2021
    Inventors: Ravishanker Kovi, Jayaraman Kannnappan, Shivnath Shivnath Patil
  • Publication number: 20210040031
    Abstract: The present application provides methods for the synthesis of intermediates in the synthesis of Safinamide or a pharmaceutically acceptable salt thereof herein Safinamide Mesylate, that is substantially free of impurities.
    Type: Application
    Filed: June 12, 2020
    Publication date: February 11, 2021
    Inventors: Ravishanker Kovi, Jayaraman Kannnappan, Rajesh A Patel, Daxeshkumar Prakashbhai Patel
  • Publication number: 20200347013
    Abstract: Isosulfan blue and processes for the preparation thereof are provided. A process is also provided for preparation of the intermediate, 2-chlorobenzaldehyde-5-sulfonic acid, sodium salt of formula (2), used in the preparation thereof and a procedure for the isolation of benzaldehyde-2,5-disulfonic acid, di-sodium salt of the formula (3). Also provided is a process for the preparation of an isoleuco acid of formula (4), which upon oxidation gives rise to isosulfan blue of pharmaceutical grade which can be used for preparation of pharmaceutical formulations. The isolation and purification procedures provided in the process provide substantially pure isosulfan blue with HPLC purity 99.5% or greater.
    Type: Application
    Filed: July 15, 2020
    Publication date: November 5, 2020
    Applicant: Apicore US LLC
    Inventors: Ravishanker Kovi, Satyam Nampalli, Peter Xavier Tharial
  • Publication number: 20200316097
    Abstract: The present application provides a stable, ready-to-use fosaprepitant dimeglumine formulation which is easy to administer without need of any reconstitution step and has a desirable solubility, stability and safety profile. The concentration of the fosaprepitant dimeglumine in the liquid formulation is preferably less than about 80 mg/ml, or more preferably between about 20 mg/ml to about 60 mg/ml. In certain embodiments, the liquid formulation retains at least about 90% chemical stability of the fosaprepitant dimeglumine after storage for a commercially reasonable amount of time at a temperature between about 0° C. to about 40° C.
    Type: Application
    Filed: February 28, 2020
    Publication date: October 8, 2020
    Inventors: Ravishanker Kovi, George Roby Thomas, Jayaraman Kannapan, Nirmal Chaitanya Indravadanbhai, Patel Mitesh Manubhai, Thupalli Ajeykumar Reddy, Vamshi Yekkanti
  • Patent number: 10752580
    Abstract: Isosulfan blue and processes for the preparation thereof are provided. A process is also provided for preparation of the intermediate, 2-chlorobenzaldehyde-5-sulfonic acid, sodium salt of formula (2), used in the preparation thereof and a procedure for the isolation of benzaldehyde-2, 5-disulfonic acid, di-sodium salt of the formula (3). Also provided is a process for the preparation of an isoleuco acid of formula (4), which upon oxidation gives rise to isosulfan blue of pharmaceutical grade which can be used for preparation of pharmaceutical formulations. The isolation and purification procedures provided in the process provide substantially pure isosulfan blue with HPLC purity 99.5% or greater.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: August 25, 2020
    Assignee: Apicore US LLC
    Inventors: Ravishanker Kovi, Satyam Nampalli, Peter Xavier Tharial
  • Publication number: 20200163979
    Abstract: A stable, ready-to-use injectable solution including thiotepa and one or more pharmaceutically acceptable solvents, co-solvents, and/or solubilizing agents. Formulations retain at least 90% and as high as 99% of the purity of thiotepa as measured by HPLC after storage at 25° C./60% RH for a period of 7 days. Certain formulations retain at least 99% of the purity of thiotepa as measured by HPLC after storage for at least six months at 2-8° C.
    Type: Application
    Filed: November 21, 2019
    Publication date: May 28, 2020
    Inventors: Ravishanker Kovi, George Roby Thomas, Nirmal Chaitanya Indravadanbhai, Patel Mitesh Manubhai, Thupalli Ajeykumar Reddy, Jayaraman Kannappan
  • Patent number: 10626086
    Abstract: Isosulfan blue and processes for the preparation thereof are provided. A process is also provided for preparation of the intermediate, 2-chlorobenzaldehyde-5-sulfonic acid, sodium salt of formula (2), used in the preparation thereof and a procedure for the isolation of benzaldehyde-2,5-disulfonic acid, di-sodium salt of the formula (3). Also provided is a process for the preparation of an isoleuco acid of formula (4), which upon oxidation gives rise to isosulfan blue of pharmaceutical grade which can be used for preparation of pharmaceutical formulations. The isolation and purification procedures provided in the process provide substantially pure isosulfan blue with HPLC purity 99.5% or greater.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: April 21, 2020
    Assignee: Apicore US LLC
    Inventors: Ravishanker Kovi, Satyam Nampalli, Peter Xavier Tharial
  • Patent number: 10590071
    Abstract: Isosulfan blue and processes for the preparation thereof are provided. A process is also provided for preparation of the intermediate, 2-chlorobenzaldehyde-5-sulfonic acid, sodium salt of formula (2), used in the preparation thereof and a procedure for the isolation of benzaldehyde-2,5-disulfonic acid, di-sodium salt of the formula (3). Also provided is a process for the preparation of an isoleuco acid of formula (4), which upon oxidation gives rise to isosulfan blue of pharmaceutical grade which can be used for preparation of pharmaceutical formulations. The isolation and purification procedures provided in the process provide substantially pure isosulfan blue with HPLC purity 99.5% or greater.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: March 17, 2020
    Assignee: Apicore US LLC
    Inventors: Ravishanker Kovi, Satyam Nampalli, Peter Xavier Tharial
  • Publication number: 20200017539
    Abstract: Novel processes for making the N-pyrrazole substituted 2-adenosine derivative regadenoson and a novel polymorph thereof. The novel polymorph of regadenoson designated form H and drug substances and pharmaceutical compositions including the novel polymorph H are disclosed.
    Type: Application
    Filed: August 28, 2019
    Publication date: January 16, 2020
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Piyush D. Fadadu, Ashish Naik
  • Patent number: 10519121
    Abstract: Processes are disclosed for making vortioxetine and pharmaceutically acceptable salts thereof. A propylene glycol solvate of vortioxetine hydrobromide is disclosed. A novel crystalline form of vortioxetine hydrobromide propylene glycol solvate, designated form AC1, is disclosed along with a method for making same. Form AC1 may be characterized by an x-ray powder diffraction pattern with peaks at about 19.64, 22.85, 25.51, 29.57, 30.18±0.2 degrees 2-theta.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: December 31, 2019
    Assignee: Apicore US LLC
    Inventors: Ravishanker Kovi, Jayaraman Rao Kannapan, Ananda Babu Thirunavakarasu, Veerabhadra Rao Bobbili, Gaurav Yadav
  • Patent number: 10508080
    Abstract: Isosulfan blue and processes for the preparation thereof are provided. A process is also provided for preparation of the intermediate, 2-chlorobenzaldehyde-5-sulfonic acid, sodium salt of formula (2), used in the preparation thereof and a procedure for the isolation of benzaldehyde-2, 5-disulfonic acid, di-sodium salt of the formula (3). Also provided is a process for the preparation of an isoleuco acid of formula (4), which upon oxidation gives rise to isosulfan blue of pharmaceutical grade which can be used for preparation of pharmaceutical formulations. The isolation and purification procedures provided in the process provide substantially pure isosulfan blue with HPLC purity 99.5% or greater.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: December 17, 2019
    Assignee: Apicore US LLC
    Inventors: Ravishanker Kovi, Satyam Nampalli, Peter Xavier Tharial
  • Patent number: 10464888
    Abstract: Isosulfan blue and processes for the preparation thereof are provided. A process is also provided for preparation of the intermediate, 2-chlorobenzaldehyde-5-sulfonic acid, sodium salt of formula (2), used in the preparation thereof and a procedure for the isolation of benzaldehyde-2,5-disulfonic acid, di-sodium salt of the formula (3). Also provided is a process for the preparation of an isoleuco acid of formula (4), which upon oxidation gives rise to isosulfan blue of pharmaceutical grade which can be used for preparation of pharmaceutical formulations. The isolation and purification procedures provided in the process provide substantially pure isosulfan blue with HPLC purity 99.5% or greater.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: November 5, 2019
    Assignee: Apicore US LLC
    Inventors: Ravishanker Kovi, Satyam Nampalli, Peter Xavier Tharial
  • Patent number: 10442813
    Abstract: Novel polymorphs of rucaparib camsylate include Form alpha having XRPD peaks at diffraction angles (2?) of 6.14±0.2, 12.41±0.2, 15.34±0.2, 15.95±0.2, 16.36±0.2, 16.51±0.2 and 19.67±0.2, Form beta having XRPD peaks at diffraction angles (2?) of 6.86±0.2, 9.58±0.2, 12.75±0.2, 14.56±0.2, 15.05±0.2, 20.76±0.2 and 22.45±0.2, and Form gamma having XRPD peaks at diffraction angles (2?) of 9.5±0.2, 12.73±0.2, 14.77±0.2, 15.16±0.2, 20.62±0.2, 22.33±0.2, 22.63±0.2 and 27.29±0.2. Methods are disclosed for the preparation of such polymorphic forms and pharmaceutical compositions containing such polymorphic forms. A method is disclosed for preparing a highly pure Form B of rucaparib camsylate. Pharmaceutical compositions containing highly pure Form B prepared by the method are disclosed.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: October 15, 2019
    Assignee: RK PHARMA SOLUTIONS LLC
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Ananda Babu Thirunavakarasu, Hemant Mande
  • Patent number: 10442832
    Abstract: Novel processes for making the N-pyrrazole substituted 2-adenosine derivative regadenoson and a novel polymorph thereof. The novel polymorph of regadenoson designated form H and drug substances and pharmaceutical compositions including the novel polymorph H are disclosed.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: October 15, 2019
    Assignee: APICORE US LLC
    Inventors: Ravishanker Kovi, Ashish Naik, Piyush Fadadu, Jayaraman Kannapan
  • Patent number: 10392417
    Abstract: Processes are provided for the preparation of a stable polymorphic form C of regadenoson, the process involving steps of a) obtaining a solution of regadenoson in benzyl alcohol solvent, b) maintaining the reaction mixture of step a) to about 10° C. to about 90° C., and c) isolating the stable polymorphic form C of regadenoson. Polymorphic form C may be characterized by an x-ray powder diffraction pattern with peaks at about 6.1, 10.2, 10.6, 19.0 and 25.4.±0.2 degrees 2-theta.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: August 27, 2019
    Assignee: Apicore US LLC
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Ananda Babu Thirunavakarasu, Piyush D. Fadadu, Piyush B. Thumar
  • Publication number: 20190233428
    Abstract: Novel polymorphs of rucaparib camsylate include Form alpha having XRPD peaks at diffraction angles (2?) of 6.14±0.2, 12.41±0.2, 15.34±0.2, 15.95±0.2, 16.36±0.2, 16.51±0.2 and 19.67±0.2, Form beta having XRPD peaks at diffraction angles (2?) of 6.86±0.2, 9.58±0.2, 12.75±0.2, 14.56±0.2, 15.05±0.2, 20.76±0.2 and 22.45±0.2, and Form gamma having XRPD peaks at diffraction angles (2?) of 9.5±0.2, 12.73±0.2, 14.77±0.2, 15.16±0.2, 20.62±0.2, 22.33±0.2, 22.63±0.2 and 27.29±0.2. Methods are disclosed for the preparation of such polymorphic forms and pharmaceutical compositions containing such polymorphic forms. A method is disclosed for preparing a highly pure Form B of rucaparib camsylate. Pharmaceutical compositions containing highly pure Form B prepared by the method are disclosed.
    Type: Application
    Filed: January 29, 2019
    Publication date: August 1, 2019
    Applicant: RK Pharma Solutions LLC
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Ananda Babu Thirunavakarasu, Hemant Mande