Patents by Inventor Mohan Prasad

Mohan Prasad 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).

  • PROCESSES FOR THE PREPARATION OF INTERMEDIATES OF VALSARTAN
    Publication number: 20090203921
    Abstract: The present invention relates to processes for the preparation of intermediates of valsartan.
    Type: Application
    Filed: February 12, 2009
    Publication date: August 13, 2009
    Inventors: Ira Saxena, Asok Nath, Mohan Prasad
  • PROCESS FOR THE PREPARATION OF ORLISTAT
    Publication number: 20090171104
    Abstract: The present invention provides a process for preparing orlistat (I) by alkanoylating an amino orlistat using formic acid anhydride as an alkanoylating agent to obtain orlistat substantially free of the byproduct, (S)-N-acetylleucine (1S)-1-[[(2S, 3S)-3-hexyl-4-oxo-2-oxetanyl]methyl] dodecyl ester (deformyl-N-acetyl orlistat).
    Type: Application
    Filed: May 10, 2006
    Publication date: July 2, 2009
    Inventors: Killol Patel, Seema Kanwar, Keshav Deo, Mohan Prasad
  • PROCESS FOR THE PREPARATION OF PRAMIPEXOLE AND NEW ANHYDROUS FORMS OF ITS DIHYDROCHLORIDE
    Publication number: 20090062549
    Abstract: The present invention provides processes for the preparation of (?) pramipexole or an acid addition salt thereof of Formula I. The present invention further provides for the novel polymorphic Forms A and B of anhydrous pramipexole dihydrochloride.
    Type: Application
    Filed: April 26, 2006
    Publication date: March 5, 2009
    Inventors: Seema Kanwar, Killol Patel, Keshav Deo, Mohan Prasad
  • Amorphous form of esomeprazole salts
    Patent number: 7482463
    Abstract: The invention relates to an amorphous form of the salts of the (-) enantiomer or (S)-enantiomer of omeprazole, i.e., esomeprazole. The invention also relates to processes for preparing amorphous esomeprazole salts and pharmaceutical compositions that include the amorphous esomeprazole salts.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: January 27, 2009
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Mahavir Singh Khanna, Bakthavathsalan Vijayaraghavan, Mohan Prasad, Yatendra Kumar
  • Process for the Preparation of Faropenem
    Publication number: 20090023915
    Abstract: The present invention is related to processes for the preparation of faropenem.
    Type: Application
    Filed: October 5, 2006
    Publication date: January 22, 2009
    Inventors: Neela Praveen Kumar, Mohan Prasad
  • Process for the Preparation of Ziprasidone
    Publication number: 20080312254
    Abstract: The invention relates to processes for the preparation of substantially pure ziprasidone. The invention also relates to the preparation of acid addition salts of ziprasidone. More particularly, it relates to the preparation of substantially pure hydrochloride salt of ziprasidone. The invention also relates to pharmaceutical compositions that include the substantially pure ziprasidone or ziprasidone hydrochloride and use of said compositions for treating schizophrenia.
    Type: Application
    Filed: February 28, 2005
    Publication date: December 18, 2008
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Yatendra Kumar, Mohan Prasad, Mahivir Singh Khanna, Seema Ahuja
  • Processes for the Preparation of Substituted Sulfoxides
    Publication number: 20080275245
    Abstract: The present invention relates to a process for enantioselective synthesis of substituted pyridinylmethyl sulfinyl-benzimidazole of compound of Formula (I). The process includes enantioselective catalytic oxidation of a substituted pyridinylmethyl prochiral sulfide derivative of compound of Formula (II) with an oxidizing agent in the presence of a chiral transition metal complex and a base in the absence of an organic solvent.
    Type: Application
    Filed: October 4, 2005
    Publication date: November 6, 2008
    Inventors: Neela Praveen Kumar, Mahavir Singh Khanna, Mohan Prasad, Yatendra Kumar
  • AMORPHOUS FORM OF ESOMEPRAZOLE SALTS
    Publication number: 20080119654
    Abstract: The invention relates to an amorphous form of the salts of the (-) enantiomer or (S)-enantiomer of omeprazole, i.e., esomeprazole. The invention also relates to processes for preparing amorphous esomeprazole salts and pharmaceutical compositions that include the amorphous esomeprazole salts.
    Type: Application
    Filed: November 28, 2007
    Publication date: May 22, 2008
    Inventors: Mahavir Singh KHANNA, Bakthavathsalan Vijayaraghavan, Mohan Prasad, Yatendra Kumar
  • PROCESS FOR THE PREPARATION OF DESLORATADINE
    Publication number: 20070244144
    Abstract: The present invention relates to an improved process for the preparation of Form 1 of desloratadine essentially free of Form 2. The invention also relates to Form 1 of desloratadine substantially free of Form 2, process for its preparation, pharmaceutical composition comprising it and its method of use for the treatment of allergic reactions in mammals.
    Type: Application
    Filed: April 10, 2007
    Publication date: October 18, 2007
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Deepak MURPANI, Mohammad RAFEEQ, Praveen RAHEJA, Swargam SATHYANARAYANA, Mohan PRASAD
  • PROCESSES FOR THE PREPARATION OF CARBAPENEMS
    Publication number: 20070197781
    Abstract: The invention relates to processes for the preparation of carbapenems. More particularly, it relates to a process for the preparation of meropenem.
    Type: Application
    Filed: July 31, 2006
    Publication date: August 23, 2007
    Inventors: Neera Tewari, Avinash Mane, Bishwa Rai, Mohan Prasad
  • Stable lamotrigine pharmaceutical compositions and processes for their preparation
    Publication number: 20070129549
    Abstract: The invention relates to processes for the preparation of piperidylmethyl-indanones, and to the use of these compounds as intermediates for the preparation of benzyl-piperidylmethyl-indanones which are active compounds for the treatment of CNS disorders. The invention also relates to a process for the preparation of donepezil or a pharmaceutically acceptable salt thereof, and pharmaceutical compositions that include the donepezil or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: March 22, 2004
    Publication date: June 7, 2007
    Inventors: Yatendra Kumar, Mohan Prasad, Asok Nath, Nitin Maheshwari
  • Barium salt of benzimidazole derivative
    Publication number: 20070060556
    Abstract: A barium salt of the S-enantiomer of omeprazole which is (S)-5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methyl]sulfinyl]-1H-benzimidazole is provided. Further, processes for preparing the barium salt, pharmaceutical compositions comprising the salt and a method of treatment or prevention of gastrointestinal ulcers comprising administration of the salt are provided.
    Type: Application
    Filed: May 3, 2004
    Publication date: March 15, 2007
    Inventors: Yatendra Kumar, Mahavir Khanna, Mohan Prasad
  • PROCESS FOR DESILYLATION OF CARBAPENEM INTERMEDIATES
    Publication number: 20070037971
    Abstract: Provided are processes for desilylating carbapenem intermediates. In particular, such desilylation reactions are done in the presence of one or more desilylating agents selected from acetyl chloride, silica chloride, thionyl chloride, oxalyl chloride or mixtures thereof.
    Type: Application
    Filed: July 31, 2006
    Publication date: February 15, 2007
    Inventors: Hashim Nizar Meeran, Bishwa Rai, Shailendra Singh, Mohan Prasad
  • Enantiomerically pure cilazapril, process for preparation
    Publication number: 20060293517
    Abstract: The invention relates to enantiomerically pure cilazapril and a process for preparing enantiomerically pure cilazapril. The invention also relates to pharmaceutical compositions that include the enantiomerically pure cilazapril and use of said compositions for treating a patient in need of an antihypertensive agent.
    Type: Application
    Filed: March 8, 2004
    Publication date: December 28, 2006
    Inventors: Yatendra Kumar, Mohan Prasad, Kaptan Singh, Kintali Ramana, Surendra Dhingra
  • Polymorphs of s-omeprazole
    Publication number: 20060247277
    Abstract: This invention relates to polymorphic forms of the S-enantiomer of omeprazole which is S-5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methyl]sulfinyl]-1Hbenzimidazole. The invention also relates to processes for preparing the polymorphic forms. More particularly, it relates to the preparation of two polymorphic forms of Someprazole, referred to as ‘Form I’ and ‘Form 1’ and pharmaceutical compositions that include the ‘Form I’ and ‘Form II’.
    Type: Application
    Filed: March 1, 2004
    Publication date: November 2, 2006
    Inventors: Yatendra Kumar, Mahavir Khanna, Mohan Prasad
  • Process for the preparation of acitretin
    Patent number: 7129365
    Abstract: The present invention relates to a cost effective and industrially useful process for the preparation of substantially pure acitretin. More specifically, the present invention relates to the preparation of acitretin of high purity and yield.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: October 31, 2006
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Yatendra Kumar, Mohan Prasad, Kaptan Singh, Pankaj Sharma
  • Rabeprazole calcium
    Publication number: 20060122233
    Abstract: The present invention relates to calcium salts of rabeprazole and processes for preparing rabeprazole calcium.
    Type: Application
    Filed: December 16, 2003
    Publication date: June 8, 2006
    Inventors: Yatendra Kumar, Mohan Prasad, Neela Kumar
  • Magnesium salt of imidazole derivative
    Publication number: 20060094762
    Abstract: Magnesium salts of rabeprazole, processes for preparing them, pharmaceutical compositions of the salts and their use in treatment or prevention of gastrointestinal ulcers are provided.
    Type: Application
    Filed: January 7, 2004
    Publication date: May 4, 2006
    Inventors: Yatendra Kumar, Mohan Prasad, Neela Kumar
  • Process for the preparation of cefdinir
    Publication number: 20060040915
    Abstract: The present invention relates to a process for the preparation of cefdinir on an industrial scale.
    Type: Application
    Filed: April 26, 2002
    Publication date: February 23, 2006
    Inventors: Yatendra Kumar, Mohan Prasad, Ashok Prasad, Shailendra Singh, Neela Kumar
  • Synthesis of N,N-dimethyl-3-(4-methyl) benzoyl propionamide a key intermediate of zolpidem
    Patent number: 6921839
    Abstract: The present invention relates to an improved and industrially advantageous process for the preparation of N,N-dimethyl-3-(4-methyl)benzoyl propionamide of Formula I, which is a key intermediate in the synthesis of zolpidem hemitartrate, a non-benzodiazepine hypnotic agent. The process includes reacting 3-(4-methyl)-benzoyl propionic acid of Formula IV, with alkyl chloroformate or pivaloyl chloride to get a mixed anhydride of Formula V; and reacting the mixed anhydride of Formula V with dimethylamine of Formula VI to get the N,N-dimethyl-3-(4-methyl)benzoyl propionamide of Formula I.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: July 26, 2005
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Yatendra Kumar, Mohan Prasad, Azok Nath