Patents by Inventor Ranjeet Nair

Ranjeet Nair 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).

  • NOVEL SALTS, CRYSTALLINE FORMS AND PREMIX OF HYPOLIPIDEMIC AGENT
    Publication number: 20220169603
    Abstract: Present invention relates to novel salts of saroglitazar and certain polymorphic forms of saroglitazar salts. Invention provides process for the preparation of novel salts and polymorphic forms of saroglitazar. Invention also provides novel co-precipitants or premixes of saroglitazar with pharmaceutically acceptable excipients/secondary therapeutic agent and process for the preparing same.
    Type: Application
    Filed: March 11, 2020
    Publication date: June 2, 2022
    Inventors: Rajiv Sharma, Sanjay Kumar, Brijesh Kumar Srivastava, Harikishore Pingali, Ranjeet Nair, Kalpesh Shah, Pandurang Zaware, Manoj Patel, Kamal Dave
  • Process for the preparation of quinolone based compounds
    Patent number: 10899713
    Abstract: The present invention relates to an improved process for the preparation of quinolone based compounds of general formula (I) using intermediate compound of general formula (XII). Invention also provides an improved process for the preparation of compound of formula (I-a) using intermediate compound of formula (XII-a) and some novel impurities generated during process. Compounds prepared using this process can be used to treat anemia.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: January 26, 2021
    Assignee: CADILA HEALTHCARE LIMITED
    Inventors: Ranjit C. Desai, Rajiv Sharma, Vrajesh Pandya, Kalpesh Shah, Sunil Patel, Rakesh Chauhan, Ranjeet Nair, Vivek Joshi, Manoj Patel, Mrigendra Shukla
  • Process for the preparation of deoxycholic acid
    Patent number: 10858387
    Abstract: The present invention provides a process for preparation of deoxycholic acid or salt thereof; the process comprises the steps of reacting the compound of formula II to obtain a compound of formula III; the compound of formula III is converted to a compound of formula IV and the compound of formula IV is converted to deoxycholic acid. The present invention also provides a process for the purification of deoxycholic acid or salt thereof.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: December 8, 2020
    Assignee: GLENMARK LIFE SCIENCES LIMITED
    Inventors: Ranjeet Nair, Shekhar Bhaskar Bhirud, Nandkumar Gaikwad, Sharad R. Gore, Rajendra C. Jagdhane, Sandip Gadge, Sukumar Sinha
  • PROCESS FOR THE PREPARATION OF DEOXYCHOLIC ACID
    Publication number: 20200140478
    Abstract: The present invention provides a process for preparation of deoxycholic acid or salt thereof; the process comprises the steps of reacting the compound of formula II to obtain a compound of formula III; the compound of formula III is converted to a compound of formula IV and the compound of formula IV is converted to deoxycholic acid. The present invention also provides a process for the purification of deoxycholic acid or salt thereof.
    Type: Application
    Filed: May 21, 2018
    Publication date: May 7, 2020
    Inventors: Ranjeet Nair, Shekhar Bhasxar Bhirud, Nandkumar Gaikwad, Sharad R. Gore, Rajendra C. Jagdhane, Sandip Gadge, Sukumar Sinha
  • Process for the preparation of SGLT inhibitor compounds
    Patent number: 10508128
    Abstract: The present invention DISCLOSES a novel process for preparing sodium glucose transporters 2 (SGLT2) inhibitor compounds of Formula IX.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: December 17, 2019
    Assignee: Indoco Remedies Limited
    Inventors: Ranjeet Nair, Palangat Vayalileveetil Ramesan, Sandip Kacharu Deshmukh, Aditi Milind Panandikar
  • PROCESS FOR THE PREPARATION OF QUINOLONE BASED COMPOUNDS
    Publication number: 20190359574
    Abstract: The present invention relates to an improved process for the preparation of quinolone based compounds of general formula (I) using intermediate compound of general formula (XII). Invention also provides an improved process for the preparation of compound of formula (I-a) using intermediate compound of formula (XII-a) and some novel impurities generated during process. Compounds prepared using this process can be used to treat anemia.
    Type: Application
    Filed: May 24, 2019
    Publication date: November 28, 2019
    Applicant: CADILA HEALTHCARE LIMITED
    Inventors: Ranjit C. Desai, Rajiv Sharma, Vrajesh Pandya, Kalpesh Shah, Sunil Patel, Rakesh Chauhan, Ranjeet Nair, Vivek Joshi, Manoj Patel, Mrigendra Shukla
  • PROCESS FOR PREPARATION OF DACLATASVIR AND SALTS
    Publication number: 20190337932
    Abstract: The present invention relates to crystalline daclatasvir dihydrochloride hydrate and process for its preparation.
    Type: Application
    Filed: July 13, 2017
    Publication date: November 7, 2019
    Inventors: Prem Chand, Yogesh YADAV, Amit Anant THANEDAR, Mohammad A. KHAN, Ranjeet NAIR, Sukumar SINHA, Shekhar Bhaskar BHiRUD
  • PROCESS FOR THE PREPARATION OF ALOGLIPTIN
    Publication number: 20190023683
    Abstract: The present invention discloses a novel process for the preparation of alogliptin and its pharmaceutically acceptable salt.
    Type: Application
    Filed: May 3, 2016
    Publication date: January 24, 2019
    Inventors: Ranjeet NAIR, Palangat Vayalileveetil RAMESAN, Aditi Milind PANANDIKAR
  • PROCESS FOR THE PREPARATION OF SGLT INHIBITOR COMPOUNDS
    Publication number: 20180016290
    Abstract: The present invention DISCLOSES a novel process for preparing sodium glucose transporters 2 (SGLT2) inhibitor compounds of Formula IX.
    Type: Application
    Filed: February 9, 2016
    Publication date: January 18, 2018
    Inventors: Ranjeet NAIR, Palangat Vayalileveetil RAMESAN, Sandip Kacharu DESHMUKH, Aditi Milind PANANDIKAR
  • Process for preparation of lacosamide and some N-benzyl-propanamide intermediate derivatives
    Patent number: 8957252
    Abstract: The present invention discloses novel process for the preparation of (2R)-2-acetamido-N- benzyl-3-methoxypropanamide of Formula I involving novel intermediates of Formula-XIX and Formula-XX.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: February 17, 2015
    Assignee: Indoco Remedies Limited
    Inventors: Mangesh Narayan Rajadhyaksha, Ranjeet Nair, Nilesh Balkrishna Shrigadi, Aditi Milind Panandikar
  • Process for the preparation of tapentadol
    Patent number: 8853456
    Abstract: Disclosed herein is an improved process for the preparation of 3-[(2R,3R)-1-(dimethylamino)-2-methylpentan-3-yl]phenol of Formula-I and its pharmaceutically acceptable salt which comprises the reaction of (S)-1-(dimethylamino)-2-methylpentan-3-one of formula VIII with 3-bromo anisole of formula II under Grignard conditions to get the compound (2S,3R)-1-(dimethylamino)-3-(3-methoxyphenyl)-2-methyl pentan-3-ol of formula V followed by activation of the —OH group of the formula V to convert into sulfonate esters of formula IX, which are on reductive deoxygenation to yield (2R,3R)-3-(3-methoxyphenyl)-N,N,2-trimethylpentan-1-amine of formula VII and demethylation of formula VII to obtain the compound 3-[(2R,3R)-1-(dimethylamino)-2-methylpentan-3-yl]phenol of Formula-1.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: October 7, 2014
    Assignee: Indoco Remedies Limited
    Inventors: Mangesh Narayan Rajadhyaksha, Ranjeet Nair, Sandip Kacharu Deshmukh, Somnath Ambadas Khabale, Aditi Milind Panandikar
  • PROCESS FOR THE PREPARATION OF TAPENTADOL
    Publication number: 20130137890
    Abstract: Disclosed herein is an improved process for the preparation of 3-[(2R,3R)-1-(dimethylamino)-2-methylpentan-3-yl]phenol of Formula-I and its pharmaceutically acceptable salt which comprises the reaction of (S)-1-(dimethylamino)-2-methylpentan-3-one of formula VIII with 3-bromo anisole of formula II under Grignard conditions to get the compound (2S, 3R)-1-(dimethylamino)-3-(3-methoxyphenyl)-2-methyl pentan-3-ol of formula V followed by activation of the —OH group of the formula V to convert into sulfonate esters of formula IX, which are on reductive deoxygenation to yield (2R,3R)-3-(3-methoxyphenyl)-N,N,2-trimethylpentan-1-amine of formula VII and demethylation of formula VII to obtain the compound 3-[(2R,3R)-1-(dimethylamino)-2-methylpentan-3-yl]phenol of Formula-1.
    Type: Application
    Filed: August 16, 2011
    Publication date: May 30, 2013
    Applicant: Indoco Remedies Limited
    Inventors: Mangesh Narayan Rajadhyaksha, Ranjeet Nair, Sandip Kacharu Deshmukh, Somnath Ambadas Khabale, Aditi Milind Panandikar
  • PROCESS FOR PREPARATION OF LACOSAMIDE AND SOME N-BENZYL-PROPANAMIDE INTERMEDIATE DERIVATIVES
    Publication number: 20130123522
    Abstract: The present invention discloses novel process for the preparation of (2R)-2-acetamido-N-benzyl-3-methoxypropanamide of Formula I involving novel intermediates of Formula-XIX and Formula-XX.
    Type: Application
    Filed: July 26, 2011
    Publication date: May 16, 2013
    Inventors: Mangesh Narayan Rajadhyaksha, Ranjeet Nair, Nilesh Balkrishna Shrigadi, Aditi Milind Panandikar