Patents by Inventor Virendra Kumar Agarwal

Virendra Kumar Agarwal 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).

  • Polymorphic Forms Of Vortioxetine Hydrobromide Tert-Butanolate
    Publication number: 20190194154
    Abstract: The present invention provides novel polymorphic forms of vortioxetine hydrobromide (I).
    Type: Application
    Filed: January 19, 2017
    Publication date: June 27, 2019
    Inventors: Virendra Kumar Agarwal, Joseph Prabahar Koilpillai, Abhay Subodhbhai Maheta, Rajesh Gangarambhai Rupala, Pankaj Chaganbhai Butani, Parag Vrujlal Ajudia, Chirag Mansukhbhai Jethva
  • Crystalline Form Of Ticagrelor
    Publication number: 20190002471
    Abstract: A crystalline form of ticagrelor, designated as Form-AM, has a defined interplanar spacing as illustrated by FIG. 1.
    Type: Application
    Filed: January 3, 2017
    Publication date: January 3, 2019
    Inventors: Virendra Kumar Agarwal, Lalit Keshav Katariya, Kamalakar Gangireddy Reddy, Gaurav Bhogilal Patel, Chandrakant Bhagvanbhai Patel, Ankur Amrutbhai Kaneria, Hitesh Sureshbhai Patel
  • Process for the Preparation of Eltrombopag Olamine
    Publication number: 20180273490
    Abstract: Salts of eltrombopag are provided. Eltrombopag olamine is prepared from salts of eltrombopag, which are used as intermediates.
    Type: Application
    Filed: November 8, 2016
    Publication date: September 27, 2018
    Inventors: Virendra Kumar Agarwal, Lalit Keshav Katariya, Gaurav Bhogilal Patel, Hitesh Sureshbhai Patel
  • Process For Preparation Of Vortioxetine Hydrobromide
    Publication number: 20180237386
    Abstract: The present invention provides a process for preparation of Vortioxetine hydrobromide (I). The present invention also relates to the novel intermediate and its use in preparation of vortioxetine hydrobromide (I).
    Type: Application
    Filed: August 18, 2016
    Publication date: August 23, 2018
    Inventors: Virendra Kumar Agarwal, Lalit Keshav Katariya, Abhay Subodhbhai Maheta, Rajesh Gangarambhai Rupala, Pankaj Chaganbhai Butani, Parag Vrujlal Ajudia, Chirag Mansukhbhai Jethva, Hemant Atulbhai Patel, Viral Arvindbhai Doshi
  • Process for the Preparation of Darunavir
    Publication number: 20180162870
    Abstract: The present invention provides a cost effective and industrially feasible process for preparation of Darunavir (I). Also described is the novel salt of intermediate 4-Amino-N-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-isobutylbenzene sulfonamide acid salt (VIII) and its use in the preparation of Darunavir. Formula (I) and (VII).
    Type: Application
    Filed: June 3, 2016
    Publication date: June 14, 2018
    Inventors: Virendra Kumar Agarwal, Lalit Keshav Katariya, Ashish Rameshchandra Upadhyay, Ranjit Ravatbhai Pada, Renish Mansukhlal Ghetiya, Sabirhusen Ismalbhai Tuvar
  • Process for preparing aromatiase inhibitor exemestane
    Patent number: 8288571
    Abstract: The present invention discloses modified process for preparing aromatase inhibitor Exemestane involving suitable oxidizing agents in suitable solvents.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: October 16, 2012
    Assignee: Cadila Healthcare Limited
    Inventors: Virendra Kumar Agarwal, Manoj Kumar Singh, Anant M. Patel, Kirtipalsinh Solanki
  • Process for preparing pure anastrozole
    Patent number: 8058302
    Abstract: The present invention discloses two new related substances (6) and (7) of Anastrozole synthesis from Q.A. Salt (5) as in Scheme—1 and purification procedures to get Anastrozole (1) free from (6) and (7).
    Type: Grant
    Filed: September 4, 2006
    Date of Patent: November 15, 2011
    Assignee: Cadila Healthcare Limited
    Inventors: Kirtipalsinh Sajjansinh Solanki, Manoj Kumar Singh, Jay Shantilal Kothari, Virendra Kumar Agarwal
  • PROCESS FOR PREPARING PURE ANASTROZOLE
    Publication number: 20110065927
    Abstract: The present invention discloses two new related substances (6) and (7) of Anastrozole synthesis from Q.A. Salt (5) as in Scheme-1 and purification procedures to get Anastrozole (1) free from (6) and (7).
    Type: Application
    Filed: November 23, 2010
    Publication date: March 17, 2011
    Applicant: Cadila Healthcare Limited
    Inventors: Kirtipalsinh Sajjansinh Solanki, Manoj Kumar Singh, Jay Shantilal Kothari, Virendra Kumar Agarwal
  • PROCESS FOR PREPARING AROMATIASE INHIBITOR EXEMESTANE
    Publication number: 20100311993
    Abstract: The present invention discloses modified process for preparing aromatase inhibitor Exemestane involving suitable oxidizing agents in suitable solvents.
    Type: Application
    Filed: November 28, 2008
    Publication date: December 9, 2010
    Inventors: Virendra Kumar Agarwal, Manoj Kumar Singh, Anant M. Patel, Kirtipalsinh Solanki
  • PROCESS FOR MANUFACTURING ROSUVASTATIN POTASSIUM AND CRYSTALLINE AND AMORPHOUS FORMS THEREOF
    Publication number: 20100274014
    Abstract: A process of manufacturing of Rosuvastatin Potassium of formula (I) is disclosed. The process comprises the steps of (a) treating Rosuvastatin protected compound of formula (II) wherein R1 and R2 are same or different having C1-C4 carbon atom or hydrogen or R1 and R2 can combine together to afford a cyclic structure comprising a junction atom as carbon or metal atom such as Si (silicon); with an inorganic base of the kind such as herein described having potassium as cation in a suitable solvent to form Rosuvastatin potassium; (b) isolating Rosuvastatin potassium.
    Type: Application
    Filed: January 25, 2007
    Publication date: October 28, 2010
    Applicant: CADILA HEALTHCARE LIMITED
    Inventors: Dhimant Jasubhai Patel, Rajiv Kumar, Virendra Kumar Agarwal
  • Process for the Preparation of Letrozole
    Publication number: 20100190997
    Abstract: The present invention relates to the process for the preparation of Letrozole free from its regioisomer (7) and other impurities by selective extraction of desired intermediate (3) using suitable solvent and mixture of solvents.
    Type: Application
    Filed: September 4, 2006
    Publication date: July 29, 2010
    Inventors: Hussain Haider, Kirtipalsinh Saijansinh Solanki, Gautam Pal, Manoj Kumar Singh, Jay Shantilal Kothari, Virendra Kumar Agarwal
  • Process for the Preparation of Pure Anastrozole
    Publication number: 20090221837
    Abstract: The present invention relates to the improved process for the preparation of Anastrozole free from the impurities arising due to impure 3,5-bis-(1-cyano-1-methylethyl)benzylbromide (2) and other related impurities resulting from incomplete/over-reaction of 2,2-(5-methyl-1,3-phenylene)-bis(2-methylpropionitrile (I).
    Type: Application
    Filed: September 4, 2006
    Publication date: September 3, 2009
    Inventors: Kirtipalsinh Saijansinh Solanki, Gautam Pal, Hussain Haider, Manoj Kumar Singh, Jay Shantilal Kothari, Virendra Kumar Agarwal
  • Process for Manufacturing Optically Pure (R) or (S)-5-(2-Aminopropyl)-2-Methoxybenzene Sulfonamide
    Publication number: 20080033208
    Abstract: The invention relates to an improved process for the manufacture of enantiomerically pure R-(+) or S-(+)-5-(2-amino-propyl)-2-methoxybenzene sulfonamide by resolution of (R,S)-5-(2-aminopropyl)-2-methoxybenzene sulfonamide with D-(?) or L-(+)-tartaric acid to form a mixture of diastereomeric salts, separating the diastereomeric salts by kinetic resolution in a mixture of solvent systems of the kind such as herein described, in the specified time and temperature range to provide said R-(?)-5-(2-aminopropyl)-2-methoxybenzene sulfonamide or S-(+)-5-(2-aminopropyl)-2-methoxybenzenesulfonamide with excellent chiral purity more than 99.9%.
    Type: Application
    Filed: February 22, 2005
    Publication date: February 7, 2008
    Inventors: Dilipkumar Chandubhai Ramolia, Dnyaneshwar Sitaram Patil, Dharmeshkumar Arvindbhai Patel, Rajivkumar Sharma, Virendra Kumar Agarwal