Patents Assigned to Hetero Research Foundation
  • Patent number: 9024015
    Abstract: The present invention provides a novel process for the preparation of 7-chloro-2,3,4,5-tetrahydro-1H-1-benzazepin-5-one. The present invention also provides an improved process for the preparation of 7-chloro-1-(2-methyl-4-nitrobenzoyl)-5-oxo-2,3,4,5-tetrahydro-1H-1-benzazepine. The present invention further provides an improved process for the preparation of 7-chloro-1-[2-methyl-4-[(2-methylbenzoyl)amino]benzoyl]-5-oxo-2,3,4,5-tetrahydro-1H-1-benzazepine.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: May 5, 2015
    Assignee: Hetero Research Foundation
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Dasari Muralidhara Reddy, Maruthi Janakiram Reddy, Bandi Vamsi Krishna
  • Patent number: 8962833
    Abstract: The present invention provides novel salts of raltegravir, processes for their preparation and pharmaceutical compositions comprising them. The present invention also provides crystalline sodium salt of raltegravir, process for its preparation and pharmaceutical compositions comprising it. The present invention further provides a process for the preparation of amorphous sodium salt of raltegravir. The present invention further provides a process for the preparation of raltegravir potassium crystalline form H1.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: February 24, 2015
    Assignee: Hetero Research Foundation
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Dasari Muralidhara Reddy, Rapolu Raji Reddy, Kesireddy Subash Chander Reddy, Bandi Vamsi Krishna
  • Patent number: 8921606
    Abstract: 3-[3-(Trifluoromethyl)phenyl]propionaldehyde is a key intermediate for the preparation of cinacalcet hydrochloride. The present invention provides a novel process for the preparation of 3-[3-(trifluoromethyl)phenyl]propionaldehyde. The present invention also provides an improved process for preparation of cinacalcet hydrochloride in high yields. The present invention further provides a process for purification of cinacalcet hydrochloride.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: December 30, 2014
    Assignee: Hetero Research Foundation
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Dasari Muralidhara Reddy, Rapolu Raji Reddy, Jambula Mukunda Reddy, Bandi Vamsi Krishna
  • Patent number: 8912333
    Abstract: The present invention provides a solid of pitavastatin tert-butyl ester and process for its preparation. The present invention also provides a novel crystalline form of pitavastatin calcium, process for its preparation and pharmaceutical compositions comprising it.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: December 16, 2014
    Assignee: Hetero Research Foundation
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Dasari Muralidhara Reddy, Samala Malla Reddy, Bandi Vamsi Krishna
  • Publication number: 20140315930
    Abstract: The present invention is directed to fast release pharmaceutical compositions comprising entecavir or its pharmaceutically acceptable salts, process for preparing the same and use of such compositions for the treatment of Hepatitis B virus infection.
    Type: Application
    Filed: November 8, 2012
    Publication date: October 23, 2014
    Applicant: Hetero Research Foundation
    Inventors: Bandi Parthasaradhi Reddy, Podili Khadgapathi, Nelluri Ramarao
  • Patent number: 8853430
    Abstract: The present invention provides novel crystalline hydrochloride salt of darunavir, process for its preparation and to pharmaceutical composition comprising it. The present invention also provides novel process for preparation of darunavir amorphous form and pharmaceutical composition comprising it.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: October 7, 2014
    Assignee: Hetero Research Foundation
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Dasari Muralidhara Reddy, Rapolu Raji Reddy, Bandi Vamsi Krishna, Kesireddy Subash Chander Reddy
  • Publication number: 20140235859
    Abstract: The present invention relates to process for the resolution of omeprazole. The present invention further provides a novel compound of enantiomers of omeprazole cyclic amine salt and a process for preparing it. The present invention also provides a solid of (R)- or (S)-omeprazole cyclic amine salt and a process for preparing it. The present invention also provides a process for the preparation of esomeprazole magnesium dihydrate substantially free of its trihydrate form. The present invention also provides a process for the preparation of recovery of chiral BINOL.
    Type: Application
    Filed: April 29, 2014
    Publication date: August 21, 2014
    Applicant: HETERO RESEARCH FOUNDATION
    Inventors: Bandi PARTHASARADHI REDDY, Kura RATHNAKAR REDDY, Rapolu RAJI REDDY, Dasari MURALIDHARA REDDY, Bandi VAMSI KRISHNA, Voggu RAMESH REDDY
  • Publication number: 20140228385
    Abstract: The present invention provides a novel process for the preparation of 4-(4-hydroxypyrimidin-2-ylamino)benzonitrile. The present invention also provides a novel process for the preparation of 4-iodo-2,6-dimethyl benzenamine. The present invention further provides an improved process for the preparation of rilpivirine. The present invention further provides a tosylate salt of rilpivirine, process for its preparation and pharmaceutical compositions comprising it.
    Type: Application
    Filed: February 16, 2012
    Publication date: August 14, 2014
    Applicant: HETERO RESEARCH FOUNDATION
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Dasari Muralidhara Reddy, Adulla Venkat Narsimha Reddy, Bandi Vamsi Krishna
  • Patent number: 8802727
    Abstract: The present invention relates to certain novel salts of Betulinic acid derivatives, to process for preparing such compounds, to use the compounds in treating diseases or disorders mediated by HIV infection, to methods for their therapeutic use and to pharmaceutical compositions containing them.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: August 12, 2014
    Assignee: Hetero Research Foundation, Hetero Drugs Limited
    Inventors: Bandi Parthasaradhi Reddy, Vedula Manohar Sharma, Kura Rathnakar Reddy, Musku Madhanmohan Reddy
  • Publication number: 20140200356
    Abstract: The present invention provides novel solvated forms of darunavir and processes for their preparation. The present invention also provides novel processes for the preparation of darunavir amorphous form and pharmaceutical compositions comprising it. Thus, for example, darunavir 2-methyl-2-butanol solvate was dissolved in methylene dichloride, distilled under vacuum at 45° C. to obtain a residue, cyclohexane was added to the residue and stirred for 30 hours at 20 to 25° C., and the separated solid was filtered, washed with cyclohexane and dried under vacuum at 50° C. for 12 hours to yield darunavir amorphous form.
    Type: Application
    Filed: October 7, 2013
    Publication date: July 17, 2014
    Applicant: Hetero Research Foundation
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Dasari Muralidhara Reddy, Rapolu Raji Reddy, Kesireddy Subash Chander Reddy, Bandi Vamsi Krishna
  • Patent number: 8779143
    Abstract: The present invention provides novel crystalline forms of maraviroc phosphate, processes for their preparation and pharmaceutical compositions comprising them. The present invention also provides novel process for the preparation of maraviroc amorphous form and pharmaceutical composition comprising it.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: July 15, 2014
    Assignee: Hetero Research Foundation
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Dasari Muralidhara Reddy, Rapolu Raji Reddy, Kesireddy Subash Chander Reddy, Bandi Vamsi Krishna
  • Patent number: 8748619
    Abstract: The present invention relates to process for the resolution of omeprazole. The present invention further provides a novel compound of enantiomers of omeprazole cyclic amine salt and a process for preparing it. The present invention also provides a solid of (R)- or (S)-omeprazole cyclic amine salt and a process for preparing it. The present invention also provides a process for the preparation of esomeprazole magnesium dihydrate substantially free of its trihydrate form. The present invention also provides a process for the preparation of recovery of chiral BINOL.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: June 10, 2014
    Assignee: Hetero Research Foundation
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy, Bandi Vamsi Krishna, Voggu Ramesh Reddy
  • Patent number: 8742105
    Abstract: The present invention provides novel polymorphs of raltegravir potassium, processes for their preparation and pharmaceutical compositions comprising them. Thus for example, raltegravir potassium was added to water and stirred for 15 minutes, the solution was filtered on hiflo bed and the bed washed with water, the resulting solution was subjected to freeze drying at ?180 deg C. for 13 hours to give raltegravir potassium amorphous form.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: June 3, 2014
    Assignee: Hetero Research Foundation
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy, Kesireddy Subash Chander Reddy
  • Publication number: 20140121384
    Abstract: The present invention provides a process for the preparation of 1H-benzimidazol-1-methyl-5-N,N-di(2-hydroxyethyl)-2-butanoic acid ethyl ester. The present invention also provides a process for the preparation of bendamustine hydrochloride. The present invention further provides a process for the purification of bendamustine hydrochloride.
    Type: Application
    Filed: May 24, 2012
    Publication date: May 1, 2014
    Applicant: Hetero Research Foundation
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reedy, Dasari Muralidhara Reddy, Bandi Vamsi Krishna
  • Publication number: 20140112992
    Abstract: The present invention provides a process for the preparation of 2-(4-hydroxyphenyl)-4-methylthiazole-5-carboxylic acid ethyl ester. The present invention also provides a process for the preparation of 2-(3-formyl-4-hydroxyphenyl)-4-methylthiazole-5-carboxylic acid ethyl ester. The present invention further provides novel crystalline Forms of febuxostat, processes for their preparation and pharmaceutical compositions comprising them. The present invention further provides febuxostat crystalline particles having a mean particle size of less than about 25 ?m, the methods for the manufacture of said crystalline particles, and pharmaceutical compositions comprising said crystalline particles.
    Type: Application
    Filed: May 21, 2012
    Publication date: April 24, 2014
    Applicant: HETERO RESEARCH FOUNDATION
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Dasari Muralidhara Reddy, Matta Ramakrishna Reddy, Bandi Vamsi Krishna
  • Publication number: 20140107337
    Abstract: The present invention provides a novel process for reducing palladium content in fosaprepitant dimeglumine.
    Type: Application
    Filed: May 21, 2012
    Publication date: April 17, 2014
    Applicant: HETERO RESEARCH FOUNDATION
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Dasari Muralidhara Reddy, Thungathurthy Srinivasa Rao, Bandi Vamsi Krishna
  • Publication number: 20130337063
    Abstract: The present disclosure relates to solid dosage forms comprising the CCR5 co-receptor antagonist maraviroc. More particularly, the present disclosure relates to a solid oral dosage form containing maraviroc which has favorable disintegration properties.
    Type: Application
    Filed: February 17, 2012
    Publication date: December 19, 2013
    Applicant: HETERO RESEARCH FOUNDATION
    Inventors: Bandi Parthasaradhi Reddy, Podili Khadgapathi, Goli Kamalakar Reddy, Nelluri Rama Rao
  • Patent number: 8598341
    Abstract: 4-[[6-chloro-2-[(4-cyanophenyl)amino]-4-pyrimidinyl]oxy]-3,5-dimethyl-benzonitrile is a key intermediate for the preparation of etravirine. The present invention provides a process for preparation of 4-[[6-chloro-2-[(4-cyanophenyl)amino]-4-pyrimidinyl]oxy]-3,5-dimethylbenzonitrile. The present invention also provides a novel process for the preparation of etravirine crystalline form I. The present invention further provides novel crystalline forms of etravirine, processes for their preparation and pharmaceutical compositions comprising them.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: December 3, 2013
    Assignee: Hetero Research Foundation
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Dasari Muralidhara Reddy, Rapolu Raji Reddy, Bandi Vamsi Krishna, Adulla Venkat Narsimha Reddy
  • Publication number: 20130273158
    Abstract: Described herein are pharmaceutical compositions of quetiapine, more particularly extended release compositions of quetiapine or its pharmaceutically acceptable salts comprising carboxymethyl ethyl cellulose, a non-gelling, hydrophobic release controlling polymer, and processes for preparing the same.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 17, 2013
    Applicant: Hetero Research Foundation
    Inventors: Bandi Parthasaradhi Reddy, Podili Khadgapathi, Kappala Ramesh
  • Patent number: 8552036
    Abstract: The present invention provides a novel crystalline form of atazanavir sulfate, process for its preparation and to pharmaceutical composition containing it. In accordance with the present invention atazanavir sulfate was dissolved in methanol, to the solution was added ethyl acetate, the solid obtained was collected by filtration and dried to give atazanavir sulfate crystalline form H1.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: October 8, 2013
    Assignee: Hetero Research Foundation
    Inventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy, Kesireddy Subash Chander Reddy