Patents by Inventor Maria Ludwikow

Maria Ludwikow 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: 9353057
    Abstract: Methods for synthesis of 1-(acyloxy)-alkyl carbamates, particularly, the synthesis of 1-(acyloxy)-alkyl carbamate prodrugs of primary or secondary amine-containing drugs are described. Also described are methods for synthesis of 1-(acyloxy)-alkyl N-hydroxysuccinimidyl carbonates which are useful intermediates in the synthesis of 1-(acyloxy)-alkyl carbamates are also described.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: May 31, 2016
    Assignee: XenoPort, Inc.
    Inventors: Mark A. Gallop, Xuedong Dai, Randall A. Scheuerman, Stephen P. Raillard, Suresh K. Manthati, Fenmei Yao, Thu Phan, Maria Ludwikow, Ge Peng, Seema Bhat
  • Patent number: 8378137
    Abstract: Methods for synthesis of 1-(acyloxy)-alkyl carbamates, particularly, the synthesis of 1-(acyloxy)-alkyl carbamate prodrugs of primary or secondary amine-containing drugs are described. Also described are methods for synthesis of 1-(acyloxy)-alkyl N-hydroxysuccinimidyl carbonates which are useful intermediates in the synthesis of 1-(acyloxy)-alkyl carbamates are also described.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: February 19, 2013
    Assignee: XenoPort, Inc.
    Inventors: Mark A. Gallop, Xuedong Dai, Randall A. Scheuerman, Stephen P. Raillard, Suresh K. Manthati, Fenmei Yao, Thu Phan, Maria Ludwikow, Ge Peng, Seema Bhat
  • Publication number: 20120010425
    Abstract: Methods for synthesis of 1-(acyloxy)-alkyl carbamates, particularly, the synthesis of 1-(acyloxy)-alkyl carbamate prodrugs of primary or secondary amine-containing drugs are described. Also described are methods for synthesis of 1-(acyloxy)-alkyl N-hydroxysuccinimidyl carbonates which are useful intermediates in the synthesis of 1-(acyloxy)-alkyl carbamates are also described.
    Type: Application
    Filed: August 11, 2011
    Publication date: January 12, 2012
    Applicant: XENOPORT, INC.
    Inventors: Mark A. Gallop, Xuedong Dai, Randall A. Scheuerman, Stephen P. Raillard, Suresh K. Manthati, Fenmei Yao, Thu Phan, Maria Ludwikow, Ge Peng, Seema Bhat
  • Patent number: 7511158
    Abstract: Methods for synthesis of 1-(acyloxy)-alkyl carbamates, particularly, the synthesis of 1-(acyloxy)-alkyl carbamate prodrugs of primary or secondary amine-containing drugs are described. Also described are methods for synthesis of 1-(acyloxy)-alkyl N-hydroxysuccinimidyl carbonates which are useful intermediates in the synthesis of 1-(acyloxy)-alkyl carbamates are also described.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: March 31, 2009
    Assignee: XenoPort, Inc.
    Inventors: Mark A. Gallop, Xuedong Dai, Randall A. Scheuerman, Stephen P. Raillard, Suresh K. Manthati, Fenmei Yao, Thu Phan, Maria Ludwikow, Ge Peng, Seema Bhat
  • Publication number: 20080096960
    Abstract: The disclosures herein relate generally to acyloxyalkyl carbamate prodrugs of (±)-4-amino-3-(4-chlorophenyl)butanoic acid and analogs thereof, pharmaceutical compositions thereof, methods of making prodrugs of (±)-4-amino-3-(4-chlorophenyl)butanoic acid and analogs thereof, methods of using prodrugs of (±)-4-amino-3-(4-chlorophenyl)butanoic acid and analogs thereof, and pharmaceutical compositions thereof for treating or preventing common diseases and/or disorders such as spasticity and/or acid reflux disease. The disclosures herein also relate to acyloxyalkyl carbamate prodrugs of (±)-4-amino-3-(4-chlorophenyl)butanoic acid and analogs thereof which are suitable for oral administration and to sustained release oral dosage forms thereof.
    Type: Application
    Filed: October 24, 2007
    Publication date: April 24, 2008
    Inventors: Mark Gallop, Fenmei Yao, Maria Ludwikow, Thu Phan, Ge Peng
  • Publication number: 20070244331
    Abstract: Methods for synthesis of 1-(acyloxy)-alkyl carbamates, particularly, the synthesis of 1-(acyloxy)-alkyl carbamate prodrugs of primary or secondary amine-containing drugs are described. Also described are methods for synthesis of 1-(acyloxy)-alkyl N-hydroxysuccinimidyl carbonates which are useful intermediates in the synthesis of 1-(acyloxy)-alkyl carbamates are also described.
    Type: Application
    Filed: May 25, 2007
    Publication date: October 18, 2007
    Inventors: Mark GALLOP, Xuedong Dai, Randall Scheuerman, Stephen Raillard, Suresh Manthati, Fenmei Yao, Thu Phan, Maria Ludwikow, Ge Peng, Seema Bhat
  • Patent number: 7227028
    Abstract: Methods for synthesis of 1-(acyloxy)-alkyl carbamates, particularly, the synthesis of 1-(acyloxy)-alkyl carbamate prodrugs of primary or secondary amine-containing drugs are described. Also described are methods for synthesis of 1-(acyloxy)-alkyl N-hydroxysuccinimidyl carbonates which are useful intermediates in the synthesis of 1-(acyloxy)-alkyl carbamates are also described.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: June 5, 2007
    Assignee: XenoPort, Inc.
    Inventors: Mark A. Gallop, Xuedong Dai, Randall A. Scheuerman, Stephen P. Raillard, Suresh K. Manthati, Fenmei Yao, Thu Phan, Maria Ludwikow, Ge Peng, Seema Bhat
  • Publication number: 20070054945
    Abstract: The disclosures herein relate generally to acyloxyalkyl carbamate prodrugs of (±)-4-amino-3-(4-chlorophenyl)butanoic acid and analogs thereof, pharmaceutical compositions thereof, methods of making prodrugs of (±)-4-amino-3-(4-chlorophenyl)butanoic acid and analogs thereof, methods of using prodrugs of (±)-4-amino-3-(4-chlorophenyl)butanoic acid and analogs thereof, and pharmaceutical compositions thereof for treating or preventing common diseases and/or disorders such as spasticity and/or acid reflux disease. The disclosures herein also relate to acyloxyalkyl carbamate prodrugs of (±)-4-amino-3-(4-chlorophenyl)butanoic acid and analogs thereof which are suitable for oral administration and to sustained release oral dosage forms thereof.
    Type: Application
    Filed: August 21, 2006
    Publication date: March 8, 2007
    Applicant: XenoPort, Inc.
    Inventors: Mark Gallop, Fenmei Yao, Maria Ludwikow, Thu Phan, Ge Peng
  • Publication number: 20070037988
    Abstract: Methods for synthesis of 1-(acyloxy)-alkyl carbamates, particularly, the synthesis of 1-(acyloxy)-alkyl carbamate prodrugs of primary or secondary amine-containing drugs are described. Also described are methods for synthesis of 1-(acyloxy)-alkyl N-hydroxysuccinimidyl carbonates which are useful intermediates in the synthesis of 1-(acyloxy)-alkyl carbamates are also described.
    Type: Application
    Filed: December 30, 2004
    Publication date: February 15, 2007
    Inventors: Mark Gallop, Xuedong Dai, Randall Scheuerman, Stephen Raillard, Suresh Manthati, Fenmei Yao, Thu Phan, Maria Ludwikow, Ge Peng, Seema Bhat
  • Publication number: 20050222431
    Abstract: Methods for synthesis of 1-(acyloxy)-alkyl carbamates, particularly, the synthesis of 1-(acyloxy)-alkyl carbamate prodrugs of primary or secondary amine-containing drugs are described. Also described are methods for synthesis of 1-(acyloxy)-alkyl N-hydroxysuccinimidyl carbonates which are useful intermediates in the synthesis of 1-(acyloxy)-alkyl carbamates are also described.
    Type: Application
    Filed: December 30, 2004
    Publication date: October 6, 2005
    Inventors: Mark Gallop, Xuedong Dai, Randall Scheuerman, Stephen Raillard, Suresh Manthati, Fenmei Yao, Thu Phan, Maria Ludwikow, Ge Peng, Seema Bhat
  • Publication number: 20050107334
    Abstract: The disclosures herein relate generally to acyloxyalkyl carbamate prodrugs of (±)-4-amino-3-(4-chlorophenyl)butanoic acid and analogs thereof, pharmaceutical compositions thereof, methods of making prodrugs of (±)-4-amino-3-(4-chlorophenyl)butanoic acid and analogs thereof, methods of using prodrugs of (±)-4-amino-3-(4-chlorophenyl)butanoic acid and analogs thereof, and pharmaceutical compositions thereof for treating or preventing common diseases and/or disorders such as spasticity and/or acid reflux disease. The disclosures herein also relate to acyloxyalkyl carbamate prodrugs of (±)-4-amino-3-(4-chlorophenyl)butanoic acid and analogs thereof which are suitable for oral administration and to sustained release oral dosage forms thereof.
    Type: Application
    Filed: August 20, 2004
    Publication date: May 19, 2005
    Inventors: Mark Gallop, Fenmei Yao, Maria Ludwikow, Thu Phan, Ge Peng