Patents by Inventor Dayaghan Gangadhar Patil

Dayaghan Gangadhar Patil 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).

  • Process for the preparation of lasofoxifene tartrate
    Patent number: 8937188
    Abstract: A solid crystalline form of 1-(2-[4-(6-methoxy-3,4-dihydronaphthalene-1-y) phenoxy]ethyl)pyrrolidine, and a preparing process thereof are provided. The aforesaid compound is a key intermediate in the synthesis of lasofoxifene. A process for preparing lasofoxifene, a process for purifying lasofoxifene tartrate, and a crystalline form of lasofoxifene tartrate are also provided.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: January 20, 2015
    Assignee: Glenmark Generics Ltd.
    Inventors: Mubeen Ahmed Khan, Nikhil Rasiklal Trivedi, Nagan Nirmalan Kandasamy, Dayaghan Gangadhar Patil, Vipin Kumar Pandey, Sukumar Sinha
  • PROCESS FOR PREPARING OPTICALLY PURE MILNACIPRAN AND ITS PHARMACEUTICALLY ACCEPTABLE SALTS
    Publication number: 20120289744
    Abstract: The present invention relates to an improved and commercially, viable process for the resolution of racemic cis milnacipran of formula I and its pharmaceutically acceptable salts of formula II. The present invention comprises using racemic cis milnacipran or its pharmaceutically acceptable salts as starting material, a low cost and commercially available resolving agent of formula III and industrially safe and economically low cost material such as water as a solvent. The said process results into optical isomers of racemic cis milnacipran having excellent optical purity without involving multiple crystallization steps. The present invention also comprises the concept of green chemistry as the invention works well with water as a solvent thereby minimizing the use of any other solvent.
    Type: Application
    Filed: December 20, 2010
    Publication date: November 15, 2012
    Applicant: ARCH PHARMALABS LIMITED
    Inventors: Ganesh Gurpur Pai, Arun Kanti Mandal, Kamlesh Jayantilal Ranbhan, Vikram Sarjerao Jagtap, Dayaghan Gangadhar Patil, Yuvraj Kashinath Zunjarrao
  • PROCESS FOR THE PREPARATION OF LASOFOXIFENE TARTRATE
    Publication number: 20120045648
    Abstract: A solid crystalline form of 1-(2-[4-(6-methoxy-3,4-dihydronaphthalene-1-y) phenoxy]ethyl)pyrrolidine, and a preparing process thereof are provided. The aforesaid compound is a key intermediate in the synthesis of lasofoxifene. A process for preparing lasofoxifene, a process for purifying lasofoxifene tartrate, and a crystalline form of lasofoxifene tartrate are also provided.
    Type: Application
    Filed: April 27, 2010
    Publication date: February 23, 2012
    Applicant: GLENMARK GENERRICS LTD
    Inventors: Mubeen Ahmed Khan, Nikhil Rasiklal Trivedi, Nagan Nirmalan Kandasamy, Dayaghan Gangadhar Patil, Vipin Kumar Pandey