Patents by Inventor RAVINDRANATH VISHNU NEWADKAR

RAVINDRANATH VISHNU NEWADKAR 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 obtaining dronedarone
    Patent number: 8927743
    Abstract: The present invention provides a process for obtaining dronedarone or salts thereof characterized in that in an organic phase comprising one or more non-polar solvents, 5-amino-3-[4-(3-di-n-butylaminopropoxy)benzoyl]-2-n-butyl-benzofuran is reacted with methane sulfonyl chloride without the addition of a base. The invention also provides a process for obtaining intermediates of dronedarone environmentally friendly and industrially viable.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: January 6, 2015
    Assignee: Laboratorios Lesvi, S.L.
    Inventors: Ravindranath Vishnu Newadkar, Avinash Changdeo Gaikwad, Ajay Madhukar Harad
  • PROCESS FOR OBTAINING DRONEDARONE
    Publication number: 20130289287
    Abstract: The present invention provides a process for obtaining dronedarone or salts thereof characterized in that in an organic phase comprising one or more non-polar solvents, 5-amino-3-[4-(3-di-n-butylaminopropoxy)benzoyl]-2-n-butyl-benzofuran is reacted with methane sulfonyl chloride without the addition of a base. The invention also provides a process for obtaining intermediates of dronedarone environmentally friendly and industrially viable.
    Type: Application
    Filed: October 18, 2011
    Publication date: October 31, 2013
    Applicant: LABORATORIOS LESVI, S.L.
    Inventors: Ravindranath Vishnu Newadkar, Avinash Changdeo Gaikwad, Ajay Madhukar Harad
  • Preparation of dihydropyridines
    Patent number: 8455655
    Abstract: The invention relates to a method and compounds for the preparation of clevidipine butyrate, a very short acting hypertensive calcium antagonist, as well as the synthesis of these compounds useful for the preparation of clevidipine (also known as clevidipine butyrate). Moreover the invention also discloses polymorphic forms of clevidipine butyrate, useful for the preparation of pharmaceutical compositions, and processes to prepare them.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: June 4, 2013
    Assignee: Laboratorios Lesvi, S.L.
    Inventors: Ravindranath Vishnu Newadkar, Anil Purushottam Joshi, Santosh Kumar Singh
  • PREPARATION OF DIHYDROPYRIDINES
    Publication number: 20110275825
    Abstract: The invention relates to a method and compounds for the preparation of clevidipine butyrate, a very short acting hypertensive calcium antagonist, as well as the synthesis of these compounds useful for the preparation of clevidipine (also known as clevidipine butyrate). Moreover the invention also discloses polymorphic forms of clevidipine butyrate, useful for the preparation of pharmaceutical compositions, and processes to prepare them.
    Type: Application
    Filed: May 6, 2011
    Publication date: November 10, 2011
    Applicant: LABORATORIOS LESVI, S.A.
    Inventors: RAVINDRANATH VISHNU NEWADKAR, Anil Purushottam Joshi, Santosh Kumar Singh