Patents by Inventor Jian-Xie Chen

Jian-Xie Chen 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).

  • Purified Pyrroloquinolinyl-Pyrrolidine-2,5-Dione Compositions and Methods for Preparing and Using Same
    Publication number: 20140031551
    Abstract: The present invention relates to a form 1 and form 2 polymorph of (?)-trans-3-(5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl)-4-(1H-indol-3-yl)pyrrolidine-2,5-dione. The present invention also relates to (?)-trans-3-(5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl)-4-(1H-indol-3-yl)pyrrolidine-2,5-dione compounds having a chiral purity greater than 99%, and methods of preparation of these compounds. The present invention also relates to pharmaceutical compositions comprising these (?)-trans-3-(5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl)-4-(1H-indol-3-yl)pyrrolidine-2,5-dione compounds.
    Type: Application
    Filed: September 25, 2013
    Publication date: January 30, 2014
    Applicant: ArQule, Inc.
    Inventors: David P. Reed, Neil R. Barnes, John C. Kane, Christopher A. Lee, Jian-Xie Chen, Martin P. Redmon
  • Purified pyrroloquinolinyl-pyrrolidine-2,5-dione compositions and methods for preparing and using same
    Patent number: 8552192
    Abstract: The present invention relates to a form 1 and form 2 polymorph of (?)-trans-3-(5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl)-4-(1H-indol-3-yl)pyrrolidine-2,5-dione. The present invention also relates to (?)-trans-3-(5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl)-4-(1H-indol-3-yl) pyrrolidine-2,5-dione compounds having a chiral purity greater than 99%, and methods of preparation of these compounds. The present invention also relates to pharmaceutical compositions comprising these (?)-trans-3-(5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl)-4-(1H-indol-3-yl)pyrrolidine-2,5-dione compounds.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: October 8, 2013
    Assignee: ArQule, Inc.
    Inventors: David P. Reed, Neil R. Barnes, John C. Kane, Christopher A. Lee, Jian-Xie Chen, Martin P. Redmon
  • Synthesis of chirally purified substituted benzothiazole diamines
    Patent number: 8519148
    Abstract: Methods for preparing chirally purified substituted 4,5,6,7-tetrahydro-benzothiazole diamines such as, for example, (6R)2-amino-4,5,6,7-tetrahydro-6-(propylamino)benzothiazole and purifying a dominant enantiomer of substituted 4,5,6,7-tetrahydro-benzothiazole diamines from entantiomerically enriched mixtures of substituted 4,5,6,7-tetrahydro-benzothiazole diamines are provided herein.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: August 27, 2013
    Assignee: Knopp Neurosciences, Inc.
    Inventors: Prasad Raje, Rajendrakumar Reddy Gadikota, Jian-Xie Chen, Olga V. Lapina, John M. McCall
  • Purified Pyrroloquinolinyl-Pyrrolidine-2,5-Dione Compositions And Methods For Preparing And Using Same
    Publication number: 20110160242
    Abstract: The present invention relates to a form 1 and form 2 polymorph of (?)-trans-3-(5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl)-4-(1H-indol-3-yl)pyrrolidine-2,5-dione. The present invention also relates to (?)-trans-3-(5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl)-4-(1H-indol-3-yl)pyrrolidine-2,5-dione compounds having a chiral purity greater than 99%, and methods of preparation of these compounds. The present invention also relates to pharmaceutical compositions comprising these (?)-trans-3-(5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl)-4-(1H-indol-3-yl)pyrrolidine-2,5-dione compounds.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 30, 2011
    Applicant: ArQule, Inc.
    Inventors: David P. Reed, Neil R. Barnes, John C. Kane, Christopher A. Lee, Jian-Xie Chen, Martin P. Redmon
  • SYNTHESIS OF CHIRALLY PURIFIED SUBSTITUTED BENZOTHIAZOLES
    Publication number: 20080227985
    Abstract: Methods for preparing chirally purified substituted 4,5,6,7-tetrahydro-benzothiazole diamines such as, for example, (6R)2-amino-4,5,6,7-tetrahydro-6-(propylamino)benzothiazole and purifying a dominant enantiomer of substituted 4,5,6,7-tetrahydro-benzothiazole diamines from entantiomerically enriched mixtures of substituted 4,5,6,7-tetrahydro-benzothiazole diamines are provided herein.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 18, 2008
    Applicant: KNOPP NEUROSCIENCES, INC.
    Inventors: Prasad Raje, Rajendrakumar Ruddy Gadikota, Jian-Xie Chen, Olga V. Lapina, John M. McCall