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: 20190218177
    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: March 22, 2019
    Publication date: July 18, 2019
    Applicant: Apicore US LLC
    Inventors: Ravishanker Kovi, Satyam Nampalli, Peter Xavier Tharial
  • Publication number: 20190177269
    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: February 1, 2019
    Publication date: June 13, 2019
    Applicant: Apicore US LLC
    Inventors: Ravishanker Kovi, Satyam Nampalli, Peter Xavier Tharial
  • Publication number: 20190169119
    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: February 1, 2019
    Publication date: June 6, 2019
    Applicant: Apicore US LLC
    Inventors: Ravishanker Kovi, Satyam Nampalli, Peter Xavier Tharial
  • Patent number: 10221184
    Abstract: Novel crystalline ponatinib hydrochloride forms designated Form alpha and Form beta are disclosed. Form alpha is characterized by data selected from an XRPD pattern with peaks at about 6.5, 9.0, 12.25, 14.4, 16.70, 19.6, 22.2, 24.5, 28.2±0.2 degrees 2-theta; an XRPD pattern substantially as depicted in FIG. 1; and/or a combination thereof. Form beta is characterized by data selected from an XRPD pattern with peaks at about 10.7, 15.2, 15.8, 16.4 23.1, 25.0, 27.8±0.2 degrees 2-theta; an XRPD pattern substantially as depicted in FIG. 3; and/or combinations thereof. Processes for making Form alpha and Form beta are disclosed.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: March 5, 2019
    Assignee: Apicore US LLC
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Ananda Babu Thirunavakarasu, Gaurav Yadav, Veerabhadra Rao Bobbili, Shivnath Sahebrao Patil, Sanjay F. Thakor
  • Publication number: 20190062268
    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: October 25, 2018
    Publication date: February 28, 2019
    Applicant: Apicore US LLC
    Inventors: Ravishanker Kovi, Satyam Nampalli, Peter Xavier Tharial
  • Publication number: 20190002421
    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: Application
    Filed: December 26, 2017
    Publication date: January 3, 2019
    Applicant: Apicore US LLC
    Inventors: Ravishanker Kovi, Jayaraman Rao Kannapan, Ananda Babu Thirunavakarasu, Veerabhadra Rao Bobbili, Gaurav Yadav
  • Publication number: 20180360917
    Abstract: The present invention relates to improved Sincalide ready-to-use formulations. The presently disclosed formulations eliminate the need for freeze drying and reconstitution with water for injection at the time of use. The present invention also relates to Sincalide formulations characterized by improved stability and ease of commercial manufacturing.
    Type: Application
    Filed: June 15, 2018
    Publication date: December 20, 2018
    Inventors: Vijal Kumar, Ravishanker Kovi, Raghu Rami Reddy Kasu, Venkat Manukondu
  • Publication number: 20180208599
    Abstract: Novel crystalline ponatinib hydrochloride forms designated Form alpha and Form beta are disclosed. Form alpha is characterized by data selected from an XRPD pattern with peaks at about 6.5, 9.0, 12.25, 14.4, 16.70, 19.6, 22.2, 24.5, 28.2±0.2 degrees 2-theta; an XRPD pattern substantially as depicted in FIG. 1; and/or a combination thereof. Form beta is characterized by data selected from an XRPD pattern with peaks at about 10.7,15.2, 15.8, 16.4 23.1, 25.0, 27.8±0.2 degrees 2-theta; an XRPD pattern substantially as depicted in FIG. 3; and/or combinations thereof. Processes for making Form alpha and Form beta are disclosed.
    Type: Application
    Filed: January 4, 2018
    Publication date: July 26, 2018
    Applicant: Apicore US LLC
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Ananda Babu Thirunavakarasu, Gaurav Yadav, Veerabhadra Rao Bobbili, Shivnath Sahebrao Patil, Sanjay F. Thakor
  • Patent number: 9988389
    Abstract: Methods are disclosed for making 3-(imidazo[1,2-b]pyridazin-3-ylethynyl)-4-methyl-N-[4-[(4-methylpiperazin-1-yl)methyl]-3-(trifluoromethyl)phenyl]benzamide, intermediates and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: June 5, 2018
    Assignee: Apicore US LLC
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Sanjay F. Thakor, Ashish Naik, Dhakhada Chetana Bharatbhai, Khichi Kuldip Fatehlal, Shivnath Sahebrao Patil
  • Publication number: 20180127452
    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: Application
    Filed: October 30, 2017
    Publication date: May 10, 2018
    Applicant: Apicore US LLC
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Ananda Babu Thirunavakarasu, Piyush D. Fadadu, Piyush B. Thumar
  • Publication number: 20180057454
    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: November 2, 2017
    Publication date: March 1, 2018
    Applicant: Apicore US LLC
    Inventors: Ravishanker Kovi, Satyam Nampalli, Peter Xavier Tharial
  • Publication number: 20180044345
    Abstract: Methods are disclosed for making 3-(imidazo[1,2-b]pyridazin-3-ylethynyl)-4-methyl-N-[4-[(4-methylpiperazin-1-yl)methyl]-3-(trifluoromethyl)phenyl]benzamide, intermediates and pharmaceutically acceptable salts thereof.
    Type: Application
    Filed: October 17, 2017
    Publication date: February 15, 2018
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Sanjay F. Thakor, Ashish Naik, Dhakhada Chetana Bharatbhai, Khichi Kuldip Fatehlal, Shivnath Sahebrao Patil
  • Publication number: 20180037606
    Abstract: Racemization-free methods are disclosed for the synthesis of carfilzomib. Novel intermediates and methods of making carfilzomib employing fragment condensation using the novel intermediates are disclosed. Amorphous carfilzomib and methods of making same are disclosed.
    Type: Application
    Filed: October 17, 2017
    Publication date: February 8, 2018
    Applicant: Apicore US LLC
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Vasanthakumar G. Ramu, Alaparthi Lakshmi Prasad, Talluri Bhushaiah Chowdary, Gaurav Kulkarni, Saiyed Akeel Ahmed Shakeel Ahmed, Veerabhadra Rao Bobbili, N V Raghavalu Dusanapudi, Anand V. Mantri
  • Publication number: 20180009831
    Abstract: Novel polymorphic forms of tavaborole, Form A and Form B, and methods of making same are disclosed. Methods are disclosed for the manufacture of the novel polymorphic Forms A and B. Methods include dissolving tavaborole in a pharmaceutically acceptable solvent to obtain a mixture, heating the mixture until a clear solution is obtained, cooling the clear solution, stirring the clear solution to obtain a crystalline product, filtering the crystalline product, and drying the crystalline product to obtain the pharmaceutically acceptable crystalline form of tavaborole. Pharmaceutical composition are disclosed including a pharmaceutically acceptable crystalline form of tavaborole Form A and/or Form B.
    Type: Application
    Filed: July 5, 2017
    Publication date: January 11, 2018
    Applicant: Apicore US LLC
    Inventors: Ravishanker Kovi, KeshavRao Rapole, Ashish Naik, Vishal Ramani
  • Publication number: 20180009825
    Abstract: Novel processes are disclosed for the preparation of eribulin mesylate. Novel intermediate compounds used in the processes for making eribulin mesylate as well as processes for making the intermediates are disclosed.
    Type: Application
    Filed: July 5, 2017
    Publication date: January 11, 2018
    Applicant: Apicore US LLC
    Inventors: Ravishanker Kovi, Sanjay Thakor, Ashish Naik, Jayaraman Kannapan
  • Patent number: 9822145
    Abstract: Racemization-free methods are disclosed for the synthesis of carfilzomib. Novel intermediates and methods of making carfilzomib employing fragment condensation using the novel intermediates are disclosed. Amorphous carfilzomib and methods of making same are disclosed.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: November 21, 2017
    Assignee: Apicore US LLC
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Vasanthakumar G Ramu, Alaparthi Lakshmi Prasad, Talluri Bhushaiah Chowdary, Gaurav Kulkarni, Saiyed Akeel Ahmed Shakeel Ahmed, Veerabhadra Rao Bobbili, N V Raghavalu Dusanapudi, Anand V. Mantri
  • Publication number: 20170260157
    Abstract: Processes are disclosed for making pomalidomide which involve reducing 2-(2,6-dioxopiperidin-3-yl)-4-nitroisoindoline-1,3-dione using a catalyst and at least one solvent. The process may include reacting 3-nitrophthalic anhydride with ?-amino glutarimide hydrochloride to obtain the 2-(2,6-dioxopiperidin-3-yl)-4-nitroisoindoline-1,3-dione. The process may further include, prior to the reducing step, subjecting the 2-(2,6-dioxopiperidin-3-yl)-4-nitroisoindoline-1,3-dione to a purification process comprising heating a mixture of 2-(2,6-dioxopiperidin-3-yl)-4-nitroisoindoline-1,3-dione and 1,4-dioxane to obtain a solution, treating the obtained solution with carbon, removing the carbon from the solution to obtain a purified 2-(2,6-dioxopiperidin-3-yl)-4-nitroisoindoline-1,3-dione solution and using the purified 2-(2,6-dioxopiperidin-3-yl)-4-nitroisoindoline-1,3-dione solution for the reducing step.
    Type: Application
    Filed: March 7, 2017
    Publication date: September 14, 2017
    Applicant: Apicore US LLC
    Inventors: Ravishanker Kovi, Veerabhadra Rao Bobbili, Jayaraman Kannapan
  • Publication number: 20170008848
    Abstract: Methods are disclosed for the preparation of netupitant and pharmaceutically acceptable salts thereof which are novel, easily reproducible, environmentally safe and cost effective. The methods may employ inexpensive starting materials and the preparation processes for intermediates are simple and highly reproducible. Novel intermediates for the preparation of netupitant and pharmaceutically acceptable salts thereof are also disclosed. Amorphous netupitant and methods of making same are disclosed.
    Type: Application
    Filed: September 23, 2016
    Publication date: January 12, 2017
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Sanjay F. Thakor, Ashish Naik
  • Publication number: 20160368875
    Abstract: Methods are disclosed for the preparation of netupitant and pharmaceutically acceptable salts thereof which are novel, easily reproducible, environmentally safe and cost effective. The methods may employ inexpensive starting materials and the preparation processes for intermediates are simple and highly reproducible. Novel intermediates for the preparation of netupitant and pharmaceutically acceptable salts thereof are also disclosed. Amorphous netupitant and methods of making same are disclosed.
    Type: Application
    Filed: September 6, 2016
    Publication date: December 22, 2016
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Sanjay F. Thakor, Ashish Naik
  • Publication number: 20160362411
    Abstract: Methods are disclosed for making 3-(imidazo[1,2-b]pyridazin-3-ylethynyl)-4-methyl-N-[4-[(4-methylpiperazin-1-yl)methyl]-3-(trifluoromethyl)phenyl]benzamide, intermediates and pharmaceutically acceptable salts thereof.
    Type: Application
    Filed: June 10, 2016
    Publication date: December 15, 2016
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Sanjay F. Thakor, Ashish Naik, Dhakhada Chetana Bharatbhai, Khichi Kuldip Fatehlal, Shivnath Sahebrao Patil