Patents by Inventor Tejas Vilas PURANIK

Tejas Vilas PURANIK 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 preparation of molindone
    Patent number: 10752586
    Abstract: The present invention provides process for preparation of molindone (I) comprising: a) reacting compound with cyclohexane-1,3-dione to form 2-(2-oxopentan-3-yl)cyclohexane-1,3-dione wherein X is Cl, Br or I, b) cyclizing 2-(2-oxopentan-3-yl)cyclohexane-1,3-dione to 2-methyl-3-ethyl-4-oxo-4,5,6,7-tetrahydroindole, c) reacting 2-methyl-3-ethyl-4-oxo-4,5,6,7-tetrahydroindole with morpholine and formaldehyde to give molindone (I), and d) optionally converting molindone (I) to its salt. The present invention further provides process for preparation of compound comprising: a) reacting compound with ethyl halide and another halide source to form compound wherein R is alkyl and X is Cl, Br or I; b) converting compound to compound.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: August 25, 2020
    Assignee: LUPIN LIMITED
    Inventors: Amit Madanrao Agarkar, Tejas Vilas Puranik, Rajesh Bharat Gapat, Umesh Babanrao Rananaware, Radhakrishna Bhikaji Shivdavkar, Girij Pal Singh
  • PROCESS FOR PREPARATION OF MOLINDONE
    Publication number: 20200262788
    Abstract: The present invention provides process for preparation of molindone (I) comprising: a) reacting compound with cyclohexane-1,3-dione to form 2-(2-oxopentan-3-yl)cyclohexane-1,3-dione wherein X is Cl, Br or I, b) cyclizing 2-(2-oxopentan-3-yl)cyclohexane-1,3-dione to 2-methyl-3-ethyl-4-oxo-4,5,6,7-tetrahydroindole, c) reacting 2-methyl-3-ethyl-4-oxo-4,5,6,7-tetrahydroindole with morpholine and formaldehyde to give molindone (I), and d) optionally converting molindone (I) to its salt. The present invention further provides process for preparation of compound comprising: a) reacting compound with ethyl halide and another halide source to form compound wherein R is alkyl and X is Cl, Br or I; b)converting compound to compound.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 20, 2020
    Applicant: LUPIN LIMITED
    Inventors: Amit Madanrao AGARKAR, Tejas Vilas PURANIK, Rajesh Bharat GAPAT, Umesh Babanrao RANANAWARE, Radhakrishna Bhikaji SHIVDAVKAR, Girij Pal SINGH