Patents by Inventor Samit Satish Mehta

Samit Satish Mehta 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).

  • Patent number: 10278946
    Abstract: The present invention relates to a stable liquid formulation of cabazitaxel. The formulation comprises cabazitaxel and at least one solubilizer. Typically, formulations are in the form of ready-to-use solutions or concentrates.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: May 7, 2019
    Assignee: EMCURE PHARMACEUTICALS LIMITED
    Inventors: Hiren Pravinbhai Patel, Haresh Ishwarbhai Patel, Arpan Suresh Chudasama, Neha Manubhai Patel, Deepak Pragjibhai Gondaliya, Mukund Keshav Gurjar, Samit Satish Mehta
  • Publication number: 20180311203
    Abstract: The present invention relates to a stable liquid formulation of cabazitaxel. The formulation comprises cabazitaxel, and at least one solubilizer. Typically, formulations are in the form of ready-to-use solutions or concentrates.
    Type: Application
    Filed: January 7, 2016
    Publication date: November 1, 2018
    Inventors: Hiren Pravinbhai PATEL, Haresh Ishwarbhai PATEL, Arpan Suresh CHUDASAMA, Neha Manubhai PATEL, Deepak Pragjibhai GONDALIYA, Mukund Keshav GURJAR, Samit Satish MEHTA
  • Publication number: 20180185323
    Abstract: The present invention relates to a stable liquid formulation of cabazitaxel. The formulation comprises cabazitaxel and at least one solubilizer. Typically, formulations are in the form of ready-to-use solutions or concentrates.
    Type: Application
    Filed: February 28, 2018
    Publication date: July 5, 2018
    Inventors: Hiren Pravinbhai PATEL, Haresh lshwarbhai PATEL, Arpan Suresh CHUDASAMA, Neha Manubhai PATEL, Deepak Pragjibhai GONDALIYA, Mukund Keshav GURJAR, Samit Satish MEHTA
  • Patent number: 9919993
    Abstract: The present invention provides a process for preparation of {(2E,4E,6E,8E)-9-(4-methoxy-2,3,6-trimethyl)phenyl-3,7-dimethyl-nona-2,4,6,8}tetraenoate, an acitretin intermediate of formula (VI) with trans isomer ?97%, comprising of reacting 3-formyl-crotonic acid butyl ester of formula (V), substantially free of impurities, with 5-(4-methoxy-2,3,6-trimethylphenyl)-3-methyl-penta-2,4-diene-1-triphenyl phosphonium bromide of formula (IV) and isolating resultant compound of formula (VI), treating the filtrate with iodine for isomerization of the undesired cis intermediate and finally obtaining acitretin (I), with desired trans isomer ?97%.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: March 20, 2018
    Assignee: Emcure Pharmaceuticals Limited
    Inventors: Mukund Keshav Gurjar, Shashikant Gangaram Joshi, Sachin Arvind Badhe, Mangesh Gorakhanath Kamble, Samit Satish Mehta
  • Publication number: 20170275229
    Abstract: The present invention provides a process for preparation of {(2E,4E,6E,8E)-9-(4-methoxy-2,3,6-trimethyl)phenyl-3,7-dimethyl-nona-2,4,6,8}tetraenoate, an acitretin intermediate of formula (VI) with trans isomer?97%, comprising of reacting 3-formyl-crotonic acid butyl ester of formula (V), substantially free of impurities, with 5-(4-methoxy-2,3,6-trimethylphenyl)-3-methyl-penta-2,4-diene-1-triphenyl phosphonium bromide of formula (IV) and isolating resultant compound of formula (VI), treating the filtrate with iodine for isomerization of the undesired cis intermediate and finally obtaining acitretin (I), with desired trans isomer?97%.
    Type: Application
    Filed: September 8, 2015
    Publication date: September 28, 2017
    Inventors: Gurjar Mukund KESHAV, Shashikant Gangaram JOSHI, Sachin Arvind BADHE, Mangesh GORAKHANATH KAMBLE, Samit Satish MEHTA
  • Patent number: 9522924
    Abstract: The present invention relates to the preparation of stable pyridone disulphide derivatives having general formula (I) and its stereoisomers, which are useful in the treatment of gastrointestinal disorders. Pyridone disulphide derivatives (I) wherein, R1, R2 and R3 are independently alkyl, alkoxy, halogen, halogenated alkoxy, halogenated alkyl, hydrogen and could be the same or different and X is CH or N. R1 is methyl, methoxy, fluorine, trifluoromethyl, difluoromethoxy and hydrogen, R2 is methyl, methoxy and hydrogen, and R3 is methyl and hydrogen.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: December 20, 2016
    Assignee: Emcure Pharmaceuticals Limited
    Inventors: Mukund Keshav Gurjar, Narendra Kumar Tripathy, Golakchandra Sudarshan Maikap, Rajendra Dagesing Mahale, Tushar Pandurang Khaladkar, Ashok Tukaram Chaudhari, Sanjay Shankar Pawar, Vijay Keshav Kalhapure, Samit Satish Mehta
  • Publication number: 20160355529
    Abstract: The present invention relates to the preparation of stable pyridone disulphide derivatives having general formula (I) and its stereoisomers, which are useful in the treatment of gastrointestinal disorders. Pyridone disulphide derivatives (I) wherein, R1, R2 and R3 are independently alkyl, alkoxy, halogen, halogenated alkoxy, halogenated alkyl, hydrogen and could be the same or different and X is CH or N. R1 is methyl, methoxy, fluorine, trifluoromethyl, difluoromethoxy and hydrogen, R2 is methyl, methoxy and hydrogen, and R3 is methyl and hydrogen.
    Type: Application
    Filed: August 22, 2016
    Publication date: December 8, 2016
    Inventors: Mukund Keshav Gurjar, Narendra Kumar Tripathy, Golakchandra Sudarshan Maikap, Rajendra Dagesing Mahale, Tushar Pandurang Khaladkar, Ashok Tukaram Chaudhari, Sanjay Shankar Pawar, Vijay Keshav Kalhapure, Samit Satish Mehta
  • Patent number: 9480681
    Abstract: Controlled release oral dosage formulations containing calcium channel blocker and processes for preparation thereof, are provided for once a day treatment. The active agent is preferably a dihydropyridine calcium channel blocker, such as nisoldipine. In one embodiment, the formulation provides controlled release of micronized nisoldipine with one or more pH independent release controlling polymers. The controlled release matrix formulation is advantageous and can be prepared by a simple, economically viable process as compared to complex core-coat prior-art versions.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: November 1, 2016
    Assignee: Emcure Pharmaceuticals Limited
    Inventors: Jitendra Mohansingh Baweja, Manoj Kumar Thottasseri, Sandip Tanaji Salunkhe, Mukund Keshav Gurjar, Samit Satish Mehta
  • Publication number: 20160311810
    Abstract: The present invention relates to a novel synthetic route for the preparation of raltegravir and pharmaceutically acceptable salts, starting from 2-amino-2-methylpropanenitrile and oxadiazole carbonyl chloride, through the formation of a pyrimidinone intermediate of formula (V).
    Type: Application
    Filed: June 28, 2016
    Publication date: October 27, 2016
    Inventors: Mukund Keshav Gurjar, Swapnil Panditrao Sonawane, Golakchandra Sudarshan Maikap, Gulabrao Dagadu Patil, Shivnath Bhaupatil Shinde, Pankaj Shalikrao, Samit Satish Mehta
  • Patent number: 9475799
    Abstract: The present invention relates to a novel synthetic route for the preparation of raltegravir and pharmaceutically acceptable salts, starting from 2-amino-2-methylpropanenitrile and oxadiazole carbonyl chloride, through the formation of a pyrimidinone intermediate of formula (V).
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: October 25, 2016
    Assignee: Emcure Pharmaceuticals Limited
    Inventors: Mukund Keshav Gurjar, Swapnil Panditrao Sonawane, Golakchandra Sudarshan Maikap, Gulabrao Dagadu Patil, Shivnath Bhaupatil Shinde, Pankaj Shalikrao, Samit Satish Mehta
  • Patent number: 9447094
    Abstract: The present invention relates to the preparation of stable pyridone disulphide derivatives having general formula (I) and its stereoisomers, which are useful in the treatment of gastrointestinal disorders. Pyridone disulphide derivatives (I) wherein, R1, R2 and R3 are independently alkyl, alkoxy, halogen, halogenated alkoxy, halogenated alkyl, hydrogen and could be the same or different and X is CH or N. R1 is methyl, methoxy, fluorine, trifluoromethyl, difluoromethoxy and hydrogen, R2 is methyl, methoxy and hydrogen, and R3 is methyl and hydrogen.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: September 20, 2016
    Assignee: Emcure Pharmaceuticals Limited
    Inventors: Mukund Keshav Gurjar, Narendra Kumar Tripathy, Golakchandra Sudarshan Maikap, Rajendra Dagesing Mahale, Tushar Pandurang Khaladkar, Ashok Tukaram Chaudhari, Sanjay Shankar Pawar, Vijay Keshav Kalhapure, Samit Satish Mehta
  • Patent number: 9403809
    Abstract: The present invention relates to a novel synthetic route for the preparation of raltegravir and pharmaceutically acceptable salts, starting from 2-amino-2-methylpropanenitrile and oxadiazole carbonyl chloride, through the formation of a pyrimidinone intermediate of formula (V).
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: August 2, 2016
    Assignee: Emcure Pharmaceuticals Limited
    Inventors: Mukund Keshav Gurjar, Swapnil Panditrao Sonawane, Golakchandra Sudarshan Maikap, Gulabrao Dagadu Patil, Shivnath Bhaupatil Shinde, Pankaj Shalikrao, Samit Satish Mehta
  • Publication number: 20150232467
    Abstract: The present invention relates to the preparation of stable pyridone disulphide derivatives having general formula (I) and its stereoisomers, which are useful in the treatment of gastrointestinal disorders. Pyridone disulphide derivatives (I) wherein, R1, R2 and R3 are independently alkyl, alkoxy, halogen, halogenated alkoxy, halogenated alkyl, hydrogen and could be the same or different and X is CH or N. R1 is methyl, methoxy, fluorine, trifluoromethyl, difluoromethoxy and hydrogen, R2 is methyl, methoxy and hydrogen, and R3 is methyl and hydrogen.
    Type: Application
    Filed: May 4, 2015
    Publication date: August 20, 2015
    Inventors: Mukund Keshav Gurjar, Narendra Kumar Tripathy, Golakchandra Sudarshan Maikap, Rajendra Dagesing Mahale, Tushar Pandurang Khaladkar, Ashok Tukaram Chaudhari, Sanjay Shankar Pawar, Vijay Keshav Kalhapure, Samit Satish Mehta
  • Patent number: 9006453
    Abstract: The present invention provides a convenient and industrially viable process for preparation of Zolmitriptan (I) having desired purity. The invention specifically relates to a method for isolating (S)-4-(4-hydrazinobenzyl)-1,3-oxazolidin-2-one hydrochloride (IIIa) of desired purity by separating the undesired inorganic side products such as stannous hydroxide by manipulation of pH at different stages and finally treating with N,N-dimethylamino butyraldehyde diethyl acetal in an acidic medium to provide Zolmitriptan (I) conforming to regulatory specifications.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: April 14, 2015
    Assignee: Emcure Pharmaceuticals Limited
    Inventors: Mukund Keshav Gurjar, Neelakandan Kaliaperumal, Pravin Prabhakar Ahirrao, Raghuramireddy Baireddy, Prabhakaran Balasubramanian, Srinivas Nandala, Prasad Pandurang Panchabhai, Samit Satish Mehta
  • Publication number: 20150045554
    Abstract: The present invention relates to a novel synthetic route for the preparation of raltegravir and pharmaceutically acceptable salts, starting from 2-amino-2-methylpropanenitrile and oxadiazole carbonyl chloride, through the formation of a pyrimidinone intermediate of formula (V).
    Type: Application
    Filed: December 21, 2012
    Publication date: February 12, 2015
    Inventors: Mukund Keshav Gurjar, Swapnil Panditrao Sonawane, Golakchandra Sudarshan Maikap, Gulabrao Dagadu Patil, Shivnath Bhaupatil Shinde, Pankaj Shalikrao, Samit Satish Mehta
  • Patent number: 8952155
    Abstract: Disclosed is process for the preparation of a key Rilpivirine intermediate namely, (E)-4-(2-cyanoethenyl)-2,6-dimethylphenylamine hydrochloride (II) by a process comprising reaction of the tetrafluoroborate salt of the diazonium ion of 2,6-dimethyl-4-amino-1-carboxybenzyl phenylamine (VI) with acrylonitrile in presence of palladium acetate, followed by treatment with an acid and its subsequent conversion to the hydrochloride salt (II), wherein the undesired Z isomer is less than 0.5% and provides Rilpivirine hydrochloride having Z isomer less than 0.1%.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: February 10, 2015
    Assignee: Emcure Pharmaceuticals Limited
    Inventors: Mukund Keshav Gurjar, Golakchandra Sudarshan Maikap, Shashikant Gangaram Joshi, Sachin Aravind Badhe, Samit Satish Mehta
  • Patent number: 8921596
    Abstract: The present invention provides a simple and efficient method for synthesis of 4-[bis(2-chloroethyl)-amino]-L-phenylalanine hydrochloride. The process involves the treatment of 4-[bis(2-chloroethyl)-amino]-L-phenylalanine free base with hydrochloric acid in water followed by isolation of 4-[bis(2-chloroethyl)-amino]-L-phenylalanine hydrochloride of desired purity.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: December 30, 2014
    Assignee: Emcure Pharmaceuticals, Ltd.
    Inventors: Mukund Keshav Gurjar, Narendra Kumar Tripathy, Sandeep Anilrao Kotharkar, Pradip Nana Patil, Samit Satish Mehta
  • Publication number: 20140341990
    Abstract: Controlled release oral dosage formulations containing calcium channel blocker and processes for preparation thereof, are provided for once a day treatment. The active agent is preferably a dihydropyridine calcium channel blocker, such as nisoldipine. In one embodiment, the formulation provides controlled release of micronized nisoldipine with one or more pH independent release controlling polymers. The controlled release matrix formulation is advantageous and can be prepared by a simple, economically viable process as compared to complex core-coat prior-art versions.
    Type: Application
    Filed: September 5, 2012
    Publication date: November 20, 2014
    Applicant: EMCURE PHARMACEUTICALS LIMITED
    Inventors: Jitendra Mohansingh Baweja, Manoj Kumar Thottasseri, Sandip Tanaji Salunkhe, Mukund Keshav Gurjar, Samit Satish Mehta
  • Publication number: 20140275538
    Abstract: Disclosed is process for the preparation of a key Rilpivirine intermediate namely, (E)-4-(2-cyanoethenyl)-2,6-dimethylphenylamine hydrochloride (II) by a process comprising reaction of the tetrafluoroborate salt of the diazonium ion of 2,6-dimethyl-4-amino-1-carboxybenzyl phenylamine (VI) with acrylonitrile in presence of palladium acetate, followed by treatment with an acid and its subsequent conversion to the hydrochloride salt (II), wherein the undesired Z isomer is less than 0.5% and provides Rilpivirine hydrochloride having Z isomer less than 0.1%.
    Type: Application
    Filed: April 9, 2012
    Publication date: September 18, 2014
    Applicant: Emcure Pharmaceuticals Limited
    Inventors: Mukund Keshav Gurjar, Golakchandra Sudarshan Maikap, Shashikant Gangaram Joshi, Sachin Aravind Badhe, Samit Satish Mehta
  • Publication number: 20140228582
    Abstract: The present invention provides a convenient and industrially viable process for preparation of Zolmitriptan (I) having desired purity. The invention specifically relates to a method for isolating (S)-4-(4-hydrazinobenzyl)-1,3-oxazolidin-2-one hydrochloride (IIIa) of desired purity by separating the undesired inorganic side products such as stannous hydroxide by manipulation of pH at different stages and finally treating with N,N-dimethylamino butyraldehyde diethyl acetal in an acidic medium to provide Zolmitriptan (I) conforming to regulatory specifications.
    Type: Application
    Filed: August 27, 2012
    Publication date: August 14, 2014
    Applicant: EMCURE PHARMACEUTICALS LIMITED
    Inventors: Mukund Keshav Gurjar, Neelakandan Kaliaperumal, Pravin Prabhakar Ahirrao, Raghuramireddy Baireddy, Prabhakaran Balasubramanian, Srinivas Nandala, Prasad Pandurang Panchabhai, Samit Satish Mehta