Patents by Inventor Charles P. Vandenbossche

Charles P. Vandenbossche 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).

  • Patent number: 10435351
    Abstract: A convenient method for converting oximes into enamides is disclosed. The process produces enamides without the concomitant production of a large volume of metallic waste. The enamides are useful precursors to amides and amines.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: October 8, 2019
    Assignee: SUNOVION PHARMACEUTICALS INC.
    Inventors: Charles P. Vandenbossche, John R. Snoonian
  • Patent number: 10011559
    Abstract: This invention provides a convenient method for converting oximes into enamides. The process does not require the use of metallic reagents. Accordingly, it produces the desired compounds without the concomitant production of a large volume of metallic waste. The enamides are useful precursors to amides and amines. The invention provides a process to convert a prochiral enamide into the corresponding chiral amide. In an exemplary process, a chiral amino center is introduced during hydrogenation through the use of a chiral hydrogenation catalyst. In selected embodiments, the invention provides methods of preparing amides and amines that include the 1,2,3,4-tetrahydro-N-alkyl-1-naphthalenamine or 1,2,3,4-tetrahydro-1-naphthalenamine substructure.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: July 3, 2018
    Assignee: SUNOVION PHARMACEUTICALS INC.
    Inventors: Hang Zhao, Stefan G. Koenig, Charles P. Vandenbossche, Surendra Singh, Harold Scott Wilkinson, Roger P. Bakale
  • Publication number: 20180016224
    Abstract: This invention provides a convenient method for converting oximes into enamides. The process does not require the use of metallic reagents. Accordingly, it produces the desired compounds without the concomitant production of a large volume of metallic waste. The enamides are useful precursors to amides and amines. The invention provides a process to convert a prochiral enamide into the corresponding chiral amide. In an exemplary process, a chiral amino center is introduced during hydrogenation through the use of a chiral hydrogenation catalyst. In selected embodiments, the invention provides methods of preparing amides and amines that include the 1,2,3,4-tetrahydro-N-alkyl-1-naphthalenamine or 1,2,3,4-tetrahydro-1-naphthalenamine sub structure.
    Type: Application
    Filed: April 27, 2017
    Publication date: January 18, 2018
    Inventors: Hang ZHAO, Stefan G. KOENIG, Charles P. VANDENBOSSCHE, Surendra SINGH, Harold Scott WILKINSON, Roger P. BAKALE
  • Publication number: 20160016891
    Abstract: This invention provides a convenient method for converting oximes into enamides. The process does not require the use of metallic reagents. Accordingly, it produces the desired compounds without the concomitant production of a large volume of metallic waste. The enamides are useful precursors to amides and amines. The invention provides a process to convert a prochiral enamide into the corresponding chiral amide. In an exemplary process, a chiral amino center is introduced during hydrogenation through the use of a chiral hydrogenation catalyst. In selected embodiments, the invention provides methods of preparing amides and amines that include the 1,2,3,4-tetrahydro-N-alkyl-1-naphthalenamine or 1,2,3,4-tetrahydro-1-naphthalenamine substructure.
    Type: Application
    Filed: May 18, 2015
    Publication date: January 21, 2016
    Inventors: Hang ZHAO, Stefan G. Koenig, Charles P. Vandenbossche, Surendra Singh, Harold Scott Wilkinson, Roger P. Bakale
  • Publication number: 20140057990
    Abstract: This invention provides a convenient method for converting oximes into enamides. The process does not require the use of metallic reagents. Accordingly, it produces the desired compounds without the concomitant production of a large volume of metallic waste. The enamides are useful precursors to amides and amines. The invention provides a process to convert a prochiral enamide into the corresponding chiral amide. In an exemplary process, a chiral amino center is introduced during hydrogenation through the use of a chiral hydrogenation catalyst. In selected embodiments, the invention provides methods of preparing amides and amines that include the 1,2,3,4-tetrahydro-N-alkyl-1-naphthalenamine or 1,2,3,4-tetrahydro-1-naphthalenamine substructure.
    Type: Application
    Filed: August 1, 2013
    Publication date: February 27, 2014
    Applicant: SUNOVION PHARMACEUTICALS INC.
    Inventors: Hang Zhao, Stefan G. Koenig, Charles P. Vandenbossche, Surendra Singh, Harold Scott Wilkinson, Roger P. Bakale
  • Patent number: 8524950
    Abstract: This invention provides a convenient method for converting oximes into enamides. The process does not require the use of metallic reagents. Accordingly, it produces the desired compounds without the concomitant production of a large volume of metallic waste. The enamides are useful precursors to amides and amines. The invention provides a process to convert a prochiral enamide into the corresponding chiral amide. In an exemplary process, a chiral amino center is introduced during hydrogenation through the use of a chiral hydrogenation catalyst. In selected embodiments, the invention provides methods of preparing amides and amines that include the 1,2,3,4-tetrahydro-N-alkyl-1-naphthalenamine or 1,2,3,4-tetrahydro-1-naphthalenamine substructure.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: September 3, 2013
    Assignee: Sunovion Pharmaceuticals Inc.
    Inventors: Hang Zhao, Stefan G. Koenig, Charles P. Vandenbossche, Surendra Singh, Harold Scott Wilkinson, Roger P. Bakale
  • Publication number: 20120095106
    Abstract: This invention provides a convenient method for converting oximes into enamides. The process does not require the use of metallic reagents. Accordingly, it produces the desired compounds without the concomitant production of a large volume of metallic waste. The enamides are useful precursors to amides and amines. The invention provides a process to convert a prochiral enamide into the corresponding chiral amide. In an exemplary process, a chiral amino center is introduced during hydrogenation through the use of a chiral hydrogenation catalyst. In selected embodiments, the invention provides methods of preparing amides and amines that include the 1,2,3,4-tetrahydro-N-alkyl-1-naphthalenamine or 1,2,3,4-tetrahydro-1-naphthalenamine substructure.
    Type: Application
    Filed: December 21, 2011
    Publication date: April 19, 2012
    Applicant: Sunovion Pharmaceuticals Inc.
    Inventors: Hang ZHAO, Stefan G. KOENIG, Charles P. VANDENBOSSCHE, Surendra SINGH, H. Scott WILKINSON, Roger P. BAKALE
  • Patent number: 8097760
    Abstract: This invention provides a convenient method for converting oximes into enamides. The process does not require the use of metallic reagents. Accordingly, it produces the desired compounds without the concomitant production of a large volume of metallic waste. The enamides are useful precursors to amides and amines. The invention provides a process to convert a prochiral enamide into the corresponding chiral amide. In an exemplary process, a chiral amino center is introduced during hydrogenation through the use of a chiral hydrogenation catalyst. In selected embodiments, the invention provides methods of preparing amides and amines that include the 1,2,3,4-tetrahydro-N-alkyl-1-naphthalenamine or 1,2,3,4-tetrahydro-1-naphthalenamine substructure.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: January 17, 2012
    Assignee: Sunovion Pharmacuticals Inc.
    Inventors: Hang Zhao, Stefan G. Koenig, Charles P. Vandenbossche, Surendra Singh, Harold Scott Wilkinson, Roger P. Bakale
  • Publication number: 20090149549
    Abstract: This invention provides a convenient method for converting oximes into enamides. The process does not require the use of metallic reagents. Accordingly, it produces the desired compounds without the concomitant production of a large volume of metallic waste. The enamides are useful precursors to amides and amines. The invention provides a process to convert a prochiral enamide into the corresponding chiral amide. In an exemplary process, a chiral amino center is introduced during hydrogenation through the use of a chiral hydrogenation catalyst. In selected embodiments, the invention provides methods of preparing amides and amines that include the 1,2,3,4-tetrahydro-N-alkyl-1-naphthalenamine or 1,2,3,4-tetrahydro-1-naphthalenamine substructure.
    Type: Application
    Filed: March 30, 2007
    Publication date: June 11, 2009
    Inventors: Hang Zhao, Stefan G. Koenig, Charles P. Vandenbossche, Surendra Singh, H. Scott Wilkinson, Roger P. Bakale
  • Patent number: 6140529
    Abstract: A process for the preparation of optically active cyclohexylphenylglycolate esters is described. The process utilizes carboxylic acid activation to couple (R)- or (S)-cyclohexylphenylglycolic acid (CHPGA) with 4-N,N-diethylamino butynol or other propargyl alcohol derivatives. The preparation of the hydrochloride salt is also described. In addition, a resolution process employing tyrosine methyl ester enantiomers for preparing a single enantiomer of CHPGA from racemic CHPGA is disclosed.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: October 31, 2000
    Assignee: Sepracor Inc.
    Inventors: Roger P. Bakale, Jorge L. Lopez, Francis X. McConville, Charles P. Vandenbossche, Chris Hugh Senanayake
  • Patent number: 6090971
    Abstract: A process for the preparation of optically active phenylcyclohexylglycolate esters is described. The process utilizes carboxylic acid activation to couple (R)-- or (S)-cyclohexylphenylglycolic acid (CHPGA) with 4-N,N-diethylamino butynol or other propargyl alcohol derivatives. The preparation of the hydrochloride salt is also described. In addition, a resolution process employing tyrosine methyl ester enantiomers for preparing a single enantiomer of CHPGA from racemic CHPGA is disclosed.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: July 18, 2000
    Assignee: Sepracor Inc.
    Inventors: Roger P. Bakale, Jorge L. Lopez, Francis X. McConville, Charles P. Vandenbossche, Chris Hugh Senanayake
  • Patent number: 5973182
    Abstract: A process for the preparation of optically active phenylcyclohexylglycolate esters is described. The process utilizes carboxylic acid activation to couple (R)- or (S)-cyclohexylphenylglycolic acid (CHPGA) with 4-N,N-diethylamino butynol or other propargyl alcohol derivatives. The preparation of the hydrochloride salt is also described. In addition, a resolution process employing tyrosine methyl ester enantiomers for preparing a single enantiomer of CHPGA from racemic CHPGA is disclosed.
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: October 26, 1999
    Assignee: Sepracor Inc.
    Inventors: Roger P. Bakale, Jorge L. Lopez, Francis X. McConville, Charles P. Vandenbossche, Chris Hugh Senanayake