Patents by Inventor Sudhir Nambiar

Sudhir Nambiar 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).

  • AN INDUSTRIAL SCALE PROCESS FOR THE PREPARATION OF PROTHIOCONAZOLE
    Publication number: 20230250069
    Abstract: The present invention relates to an industrial scale process for the preparation of Prothioconazole (I), which is simple, economical, efficient, user and environment friendly, moreover commercially viable with higher yield and greater chemical purity.
    Type: Application
    Filed: October 5, 2020
    Publication date: August 10, 2023
    Applicant: Hikal Limited
    Inventors: Sudhir NAMBIAR, Santosh GHOSH, Nagaprasada Rao L., Pramod SAWANT, Vinayak LAMBATE, Dnyaneshwar NIPUNGE, Somwanshi ATUL
  • SUBSTANTIALLY PURE CLARITHROMYCIN 9-OXIME AND ITS PREPARATION THEREOF
    Publication number: 20230250124
    Abstract: The present invention relates to substantially pure Clarithromycin 9-oxime more particularly Clarithromycin 9(E)-oxime having purity more than 98% and corresponding (Z)-isomer not more than 1%. The present invention further relates to a process for preparation of Clarithromycin 9(E)-oxime of formula (I), its pharmaceutically acceptable salts and purification.
    Type: Application
    Filed: October 27, 2020
    Publication date: August 10, 2023
    Applicants: HIKAL LIMITED, GALAPAGOS
    Inventors: Sudhir NAMBIAR, Rakesh Ramesh GANORKAR, Kiran CHAUDHARI, Anil GOHAR, Deeksha SINGH, Patrick CLAERHOUT STIJN POL
  • Process for the preparation of trifloxystrobin
    Patent number: 11649204
    Abstract: The present invention relates to an improved process for the preparation of trifloxystrobin of formula (I), which is simple, economical, efficient, user and environment friendly, moreover commercially viable with higher yield and chemical purity.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: May 16, 2023
    Assignee: Hikal Limited
    Inventors: Kamlesh Kantilal Lodha, Sandip Popatrao Udawant, Deepak Babasaheb Phasage, Lakonda Nagaprasada Rao, Santosh Kumar Ghosh, Sudhir Nambiar
  • AN INDUSTRIAL PROCESS FOR RESOLUTION OF CHLOCYPHOS
    Publication number: 20220389040
    Abstract: The present invention relates to a process for resolution of Chlocyphos of Formula (I) to obtain corresponding (S)- or (R)-isomers. The present invention further relates to a process of obtaining (S)-Chlocyphos using (R)-(+)-?-methylbenzylamine and (R)-Chlocyphos using (S)-?-methylbenzylamine. The said resolution process provides the corresponding isomer with chiral purity more than 98%.
    Type: Application
    Filed: October 13, 2020
    Publication date: December 8, 2022
    Applicant: Hikal Limited
    Inventors: Rakesh Ramesh GANORKAR, Sudhir NAMBIAR, Narayan Subhash CHAKOR, H.D. GURUPADASWAMY, Shamrao Bapurao SHELAR
  • AN IMPROVED PROCESS FOR THE PREPARATION OF TRIFLOXYSTROBIN
    Publication number: 20200283373
    Abstract: The present invention relates to an improved process for the preparation of trifloxystrobin of formula (I), which is simple, economical, efficient, user and environment friendly, moreover commercially viable with higher yield and chemical purity.
    Type: Application
    Filed: August 30, 2018
    Publication date: September 10, 2020
    Applicant: HIKAL LIMITED
    Inventors: Kamlesh Kantilal LODHA, Sandip Popatrao UDAWANT, Deepak Babasaheb PHASAGE, Lakonda Nagaprasada RAO, Santosh Kumar GHOSH, Sudhir NAMBIAR
  • Process for preparing thiazolidinediones
    Patent number: 7511148
    Abstract: This invention provides a process for reducing an exocyclic double bond at the 5-position of a thiazolidinedione moiety of a thiazolidinedione precursor comprising the steps of: a) preparing a solution or suspension of the thiazolidinedione precursor in a non-ether solvent medium with a base, and b) combining the solution or suspension with a dithionite source. Preferred solvent media include aqueous N,N-dimethylformamide. Sodium dithionite is a preferred dithionite source.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: March 31, 2009
    Assignee: Sandoz AG
    Inventors: Sudhir Nambiar, Abhinay Chandrakant Pise
  • Process for Preparing Thiazolidinediones
    Publication number: 20070276012
    Abstract: This invention provides a process for reducing an exocyclic double bond at the 5-position of a thiazolidinedione moiety of a thiazolidinedione precursor comprising the steps of: a) preparing a solution or suspension of the thiazolidinedione precursor in a non-ether solvent medium with a base, and b) combining the solution or suspension with a dithionite source. Preferred solvent media include aqueous N,N-dimethylformamide. Sodium dithionite is a preferred dithionite source.
    Type: Application
    Filed: October 27, 2004
    Publication date: November 29, 2007
    Inventors: Sudhir Nambiar, Abhinay Pise