Patents by Inventor Hari Babu Katta

Hari Babu Katta 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 (R,S)-nicotine
    Patent number: 8389733
    Abstract: A process for (R,S)-nicotine is described. Condensation of 1-(but-1-enyl) pyrrolidin-2-one with nicotinic acid ester gave 1-(but-1-enyl)-3-nicotinoylpynolidin-2-one which on treatment with an acid and a base gave myosmine. Myosmine was converted to (R,S)-nicotine by reduction followed by N-methylation.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: March 5, 2013
    Assignee: Divi's Laboratories, Ltd.
    Inventors: Murali Krishna Prasad Divi, Gundu Rao Padakandla, Mysore Aswatha Narayana Rao, Hari Babu Katta
  • Process for the preparation of (R, S)-nicotine
    Patent number: 8378110
    Abstract: A process for (R,S)-nicotine is described. Condensation of 1-(but-1-enyl)pyrrolidin-2-one with nicotinic acid ester gave 1-(but-1-enyl)-3-nicotinoylpyrrolidin-2-one which on treatment with an acid and a base gave myosmine. Myosmine was converted to (R,S)-nicotine by reduction followed by N-methylation.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: February 19, 2013
    Assignee: Divi's Laboratories, Ltd.
    Inventors: Murali Krishna Prasad Divi, Gundu Rao Padakandla, Mysore Aswatha Narayana Rao, Hari Babu Katta
  • Process for the resolution of (R,S)-nicotine
    Patent number: 8378111
    Abstract: (R,S)-Nicotine was resolved through diastereomeric salt formation using dibenzoyl-d-tartaric acid and dibenzoyl-l-tartaric acid to obtain enantiomerically pure (S)-nicotine and (R)-nicotine.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: February 19, 2013
    Assignee: Divi's Laboratories, Ltd.
    Inventors: Murali Krishna Prasad Divi, Gundu Rao Padakandla, Mysore Aswatha Narayana Rao, Hari Babu Katta
  • Process for the preparation of (R,S)-nicotine
    Patent number: 8367837
    Abstract: A process for (R,S)-nicotine is described. Condensation of 1-(but-1-enyl)pyrrolidin-2-one with nicotinic acid ester gave 1-(but-1-enyl)-3-nicotinoylpyrrolidin-2-one which on treatment with an acid and a base gave myosmine. Myosmine was converted to (R,S)-nicotine by reduction followed by N-methylation.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: February 5, 2013
    Assignee: Divi's Laboratories, Ltd.
    Inventors: Murali Krishna Prasad Divi, Gundu Rao Padakandla, Mysore Aswatha Narayana Rao, Hari Babu Katta
  • PROCESS FOR THE PREPARATION OF (R,S)-NICOTINE
    Publication number: 20130030188
    Abstract: A process for (R,S)-nicotine is described. Condensation of 1-(but-1-enyl) pyrrolidin-2-one with nicotinic acid ester gave 1-(but-1-enyl)-3-nicotinoylpyrrolidin-2-one which on treatment with an acid and a base gave myosmine. Myosmine was converted to (R,S)-nicotine by reduction followed by N-methylation.
    Type: Application
    Filed: October 8, 2012
    Publication date: January 31, 2013
    Applicant: DIVI'S LABORATORIES LIMITED
    Inventors: Murali Krishna Prasad Divi, Gundu Rao Padakandla, Mysore Aswatha Narayana Rao, Hari Babu Katta
  • PROCESS FOR THE PREPARATION OF (R,S)-NICOTINE
    Publication number: 20130030187
    Abstract: A process for (R,S)-nicotine is described. Condensation of 1-(but-1-enyl) pyrrolidin-2-one with nicotinic acid ester gave 1-(but-1-enyl)-3-nicotinoylpynolidin-2-one which on treatment with an acid and a base gave myosmine. Myosmine was converted to (R,S)-nicotine by reduction followed by N-methylation.
    Type: Application
    Filed: October 8, 2012
    Publication date: January 31, 2013
    Applicant: DIVI'S LABORATORIES LIMITED
    Inventors: Murali Krishna Prasad Divi, Gundu Rao Padakandla, Mysore Aswatha Narayana Rao, Hari Babu Katta
  • PROCESS FOR THE PREPARATION OF (R,S)-NICOTINE
    Publication number: 20120209006
    Abstract: A process for (R,S)-nicotine is described. Condensation of 1-(but-1-enyl)pyrrolidin-2-one with nicotinic acid ester gave 1-(but-1-enyl)-3-nicotinoylpyrrolidin-2-one which on treatment with an acid and a base gave myosmine. Myosmine was converted to (R,S)-nicotine by reduction followed by N-methylation.
    Type: Application
    Filed: April 6, 2011
    Publication date: August 16, 2012
    Applicant: Divi's Laboratories Limited
    Inventors: Murali Krishna Prasad Divi, Gundu Rao Padakandla, Mysore Aswatha Narayana Rao, Hari Babu Katta
  • PROCESS FOR THE RESOLUTION OF (R,S)-NICOTINE
    Publication number: 20120197022
    Abstract: (R,S)-Nicotine was resolved through diastereomeric salt formation using dibenzoyl-d-tartaric acid and dibenzoyl-l-tartaric acid to obtain enantiomerically pure (S)-nicotine and (R)-nicotine.
    Type: Application
    Filed: April 6, 2011
    Publication date: August 2, 2012
    Applicant: Divi's Laboratories Limited
    Inventors: Murali Krishna Prasad Divi, Gundu Rao Padakandla, Mysore Aswatha Narayana Rao, Hari Babu Katta