Patents by Inventor Paul Nguyen-Ba

Paul Nguyen-Ba 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).

  • Lupane derivatives useful for treating HIV
    Patent number: 8269026
    Abstract: The invention relates to 21-keto triterpene compounds of formula (I): wherein R1, X, and Y are as defined herein, and pharmaceutically acceptable salts and solvates thereof. These compounds exhibit significant anti-HIV activity. Thus, the invention also relates to methods for prevention or treatment of HIV infections by administering therapeutically effective amounts of a compound of formula (I), or a pharmaceutically acceptable salt or solvate thereof to a subject in need of such treatment.
    Type: Grant
    Filed: July 3, 2010
    Date of Patent: September 18, 2012
    Assignee: Vertex Pharmaceuticals Incorporated
    Inventors: Christophe Moinet, Liliane Halab, Nathalie Turcotte, Monica Bubenik, Marc Courchesne, Carl Poisson, Oswy Z. Pereira, Paul Nguyen-Ba, Bingcan Liu, Nathalie Chauret, Caroline Cadilhac, Laval Chan Chun Kong
  • NOVEL 17 BETA LUPANE DERIVATIVES
    Publication number: 20110077251
    Abstract: The invention relates to 17? lupane derivatives of formula (I): wherein R1 and X are as defined herein, and pharmaceutically acceptable salts and solvates thereof. These compounds exhibit significant anti-HIV activity. Thus, the invention also relates to methods for prevention or treatment of HIV infection by administering therapeutically effective amounts of a compound of formula (I), or a pharmaceutically acceptable salt or solvate thereof to a subject in need of such treatment.
    Type: Application
    Filed: August 16, 2010
    Publication date: March 31, 2011
    Inventors: Christophe Moinet, Bingcan Liu, Liliane Halab, Nathalie Turcotte, Real Denis, Carl Poisson, Paul Nguyen-Ba, Monica Bubenik, Laval Chan Chun Kong
  • NOVEL LUPANE DERIVATIVES
    Publication number: 20110077227
    Abstract: The invention relates to 21-keto triterpene compounds of formula (I): wherein R1, X, and Y are as defined herein, and pharmaceutically acceptable salts and solvates thereof. These compounds exhibit significant anti-HIV activity. Thus, the invention also relates to methods for prevention or treatment of HIV infections by administering therapeutically effective amounts of a compound of formula (I), or a pharmaceutically acceptable salt or solvate thereof to a subject in need of such treatment.
    Type: Application
    Filed: July 3, 2010
    Publication date: March 31, 2011
    Inventors: Christophe Moinet, Liliane Halab, Nathalie Turcotte, Monica Bubenik, Marc Courchesne, Carl Poisson, Oswy Z. Pereira, Paul Nguyen-Ba, Bingcan Liu, Nathalie Chauret, Caroline Cadilhac, Laval Chan Chun Kong
  • Substituted-1,3-oxathiolanes and substituted-1,3-dioxolanes with antiviral properties
    Patent number: 7119202
    Abstract: Disclosed are compounds of the formula wherein R1 is hydrogen or an acyl group having 1 to 16 carbon atoms; R2 is a purine or pyrimidine base or an analogue or derivative thereof; Z is O, S, S?O or SO2; and pharmaceutically acceptable derivatives thereof. Also described are processes for and intermediates of use in their preparation, pharmaceutical compositions containing these compounds, and the use of these compounds in the antiviral treatment of mammals.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 10, 2006
    Assignee: Glaxo Wellcome Inc.
    Inventors: Pierrette Belleau, legal representative, Paul Nguyen Ba, Bernard Belleau, deceased
  • 2-Substituted-4-substituted-1,3-dioxolanes and use thereof
    Patent number: 6350753
    Abstract: Nucleoside analogues containing a 1,3-dioxolane structure are suitable antiviral agents, particulary for the treatment of the HIV infections in mammals, especially humans. Examples of the nucleoside analogues include: cis-2-acetoxymethyl-4-(thymin-1′-yl)-1,3,-dioxolane, cis-2-hydroxymethyl-4-(thymin-1′-yl)-1,3-dioxolane, cis-2-benzoyloxymethyl-4-(cytosin-1′-yl)-1,3-dioxolane, and cis-2-hydroxymethyl-4-(cytosin-1′-yl)-1,3-dioxolane. These compounds can be in the form of their racemates or their separate enantiomers.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: February 26, 2002
    Assignee: Biochem Pharma Inc.
    Inventors: Bernard Belleau, Dilip M. Dixit, Paul Nguyen-Ba
  • Cytomegalovirus inhibiting compounds
    Patent number: 5945431
    Abstract: The present invention relates to heterocyclic compounds having antiviral activity. In particular, compounds of formula (I): wherein B, W, X, Y, R.sub.1, R.sub.2, R.sub.3, R.sub.4 and n are as defined herein, are useful in the therapy and prophylaxis of cytomegalovirus (CMV) infection in mammals.
    Type: Grant
    Filed: September 4, 1997
    Date of Patent: August 31, 1999
    Assignee: Biochem Therapeutics Incorporated
    Inventors: Haolun Jin, Laval C. Chan, Wei Wang, Tomislav Stefanac, Tarek S. Mansour, Paul Nguyen-Ba, Jean-Francois Lavallee, Guy Falardeau