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).
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Patent number: 10435351Abstract: 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: GrantFiled: January 29, 2018Date of Patent: October 8, 2019Assignee: SUNOVION PHARMACEUTICALS INC.Inventors: Charles P. Vandenbossche, John R. Snoonian
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Patent number: 10011559Abstract: 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: GrantFiled: April 27, 2017Date of Patent: July 3, 2018Assignee: SUNOVION PHARMACEUTICALS INC.Inventors: Hang Zhao, Stefan G. Koenig, Charles P. Vandenbossche, Surendra Singh, Harold Scott Wilkinson, Roger P. Bakale
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Publication number: 20180016224Abstract: 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: ApplicationFiled: April 27, 2017Publication date: January 18, 2018Inventors: Hang ZHAO, Stefan G. KOENIG, Charles P. VANDENBOSSCHE, Surendra SINGH, Harold Scott WILKINSON, Roger P. BAKALE
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Publication number: 20160016891Abstract: 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: ApplicationFiled: May 18, 2015Publication date: January 21, 2016Inventors: Hang ZHAO, Stefan G. Koenig, Charles P. Vandenbossche, Surendra Singh, Harold Scott Wilkinson, Roger P. Bakale
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Publication number: 20140057990Abstract: 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: ApplicationFiled: August 1, 2013Publication date: February 27, 2014Applicant: SUNOVION PHARMACEUTICALS INC.Inventors: Hang Zhao, Stefan G. Koenig, Charles P. Vandenbossche, Surendra Singh, Harold Scott Wilkinson, Roger P. Bakale
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Patent number: 8524950Abstract: 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: GrantFiled: December 21, 2011Date of Patent: September 3, 2013Assignee: Sunovion Pharmaceuticals Inc.Inventors: Hang Zhao, Stefan G. Koenig, Charles P. Vandenbossche, Surendra Singh, Harold Scott Wilkinson, Roger P. Bakale
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Publication number: 20120095106Abstract: 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: ApplicationFiled: December 21, 2011Publication date: April 19, 2012Applicant: Sunovion Pharmaceuticals Inc.Inventors: Hang ZHAO, Stefan G. KOENIG, Charles P. VANDENBOSSCHE, Surendra SINGH, H. Scott WILKINSON, Roger P. BAKALE
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Patent number: 8097760Abstract: 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: GrantFiled: March 30, 2007Date of Patent: January 17, 2012Assignee: Sunovion Pharmacuticals Inc.Inventors: Hang Zhao, Stefan G. Koenig, Charles P. Vandenbossche, Surendra Singh, Harold Scott Wilkinson, Roger P. Bakale
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Publication number: 20090149549Abstract: 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: ApplicationFiled: March 30, 2007Publication date: June 11, 2009Inventors: Hang Zhao, Stefan G. Koenig, Charles P. Vandenbossche, Surendra Singh, H. Scott Wilkinson, Roger P. Bakale
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Patent number: 6140529Abstract: 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: GrantFiled: December 15, 1998Date of Patent: October 31, 2000Assignee: Sepracor Inc.Inventors: Roger P. Bakale, Jorge L. Lopez, Francis X. McConville, Charles P. Vandenbossche, Chris Hugh Senanayake
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Patent number: 6090971Abstract: 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: GrantFiled: June 25, 1999Date of Patent: July 18, 2000Assignee: Sepracor Inc.Inventors: Roger P. Bakale, Jorge L. Lopez, Francis X. McConville, Charles P. Vandenbossche, Chris Hugh Senanayake
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Patent number: 5973182Abstract: 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: GrantFiled: October 22, 1998Date of Patent: October 26, 1999Assignee: Sepracor Inc.Inventors: Roger P. Bakale, Jorge L. Lopez, Francis X. McConville, Charles P. Vandenbossche, Chris Hugh Senanayake