Patents by Inventor Sagun K. Tandel

Sagun K. Tandel 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).

  • Processes for preparing (R)-8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine and intermediates thereof
    Patent number: 8299241
    Abstract: The present invention provides processes and intermediates for the preparation of (R)-8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine and salts thereof which are useful as serotonin-2C (5-HT2C) receptor agonists for the treatment of, for example, obesity.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: October 30, 2012
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Tawfik Gharbaoui, Sagun K. Tandel, You-An Ma, Marlon Carlos, John Robert Fritch
  • PROCESSES USEFUL FOR THE SYNTHESIS OF (R)-1--2-METHYL-PYRROLIDINE
    Publication number: 20110040105
    Abstract: Processes useful for making a pharmaceutically useful compound according to Formula (I), forms of such a compound, and intermediates useful in such processes are described.
    Type: Application
    Filed: April 15, 2009
    Publication date: February 17, 2011
    Applicant: ARENA PHARMACEUTICALS, INC.
    Inventors: Christian H. Huber, Young Mi Khulman, Sagun K. Tandel, Stephen R. Johannsen, Tingmin Wang, Paul Angell
  • PROCESSES FOR PREPARING (R)-8-CHLORO-1-METHYL-2,3,4,5-TETRAHYDRO-1H-3-BENZAZEPINE AND INTERMEDIATES THEREOF
    Publication number: 20100305316
    Abstract: The present invention provides processes and intermediates for the preparation of (R)-8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine and salts thereof which are useful as serotonin-2C (5-HT2C) receptor agonists for the treatment of, for example, obesity.
    Type: Application
    Filed: December 4, 2007
    Publication date: December 2, 2010
    Inventors: Tawfik Gharbaoui, Sagun K. Tandel, You-An Ma, Marlon Carlos, John Robert Fritch
  • Process for making alkyl N-alkyl or N-aryl-thiocarbamates
    Patent number: 5621132
    Abstract: A process for the preparation of alkyl esters of N-alkyl or N-aryl thiocarbamic acid having the formula: ##STR1## wherein R is alkyl or aryl, R.sub.2 is alkyl and R.sub.1 is hydrogen or alkyl which comprises reacting the S-alkyl ester of N-alkyl or aryl dithiocarbamic acid having the formula: ##STR2## wherein R, R.sub.1, R.sub.2 have the meanings stated above with an appropriate alkali metal alkoxide in the presence of one or more alcoholic solvents.
    Type: Grant
    Filed: August 4, 1995
    Date of Patent: April 15, 1997
    Assignee: Council of Scientific and Industrial Research
    Inventors: Abdul R. A. S. Deshmukh, Rajan H. Naik, Sagun K. Tandel, Srinivasachari Rajappa