Patents by Inventor Pierette Belleau

Pierette Belleau 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).

  • Substituted-1, 3-oxathiolanes and substituted-1, 3-dioxolanes with antiviral properties
    Publication number: 20070037977
    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 process 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: Application
    Filed: August 11, 2006
    Publication date: February 15, 2007
    Inventors: Bernard Belleau, Pierette Belleau, Dilip Dixit, Nghe Nguyen-Ba
  • Substituted-1,3-oxathiolanes and substituted-1, 3-dioxolanes with antiviral properties
    Publication number: 20070037975
    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: Application
    Filed: October 16, 2006
    Publication date: February 15, 2007
    Inventors: Bernard Belleau, Dilip Dixit, Nghe Nguyen-Ba, Pierette Belleau
  • Acetaldehyde acetal compounds, their synthesis, and uses thereof
    Patent number: 7122693
    Abstract: The acetaldehyde compounds, 2-thiobenzoylacetaldehyde diethylacetal, 2-benzoyloxyacetaldehyde bis(2-methoxyethyl)acetal, 2-hydroxyacetaldehyde bis( 2-methoxyethyl)acetal, 2-thiobenzoylacetaldehyde bis(2-methoxy-ethyl)acetal, and 2-thioacetaldehyde bis(2-methoxyethyl)acetal, are useful as intermediates in the synthesis of substituted 1,3-oxathiolanes and substituted 1,3-dioxolanes.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: October 17, 2006
    Assignee: Shire BioChem Inc.
    Inventors: Pierette Belleau, executrix of estate, Dilip M. Dixit, Nghe Nguyen-Ba, Bernard Belleau, deceased
  • Substituted 1,3-oxathiolanes
    Patent number: 6903224
    Abstract: Substituted 1,3-oxathiolanes, such as cis- and trans-2-ethoxycarbonyl-5-hydroxy-1,3-oxathiolane and cis- and trans-2-ethoxycarbonyl-5-acetoxy-1,3-oxathiolane, are suitable as intermediates for the production of substituted 1,3-oxathiolanes nucleoside analogs having antiviral properties.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: June 7, 2005
    Assignee: BioChem Pharma Inc.
    Inventors: Pierette Belleau, Dilip M. Dixit, Nghe Nguyen-Ba, Bernard Belleau
  • Substituted-1,3-oxathiolanes and substituted-1,3-dioxolanes with antiviral properties
    Publication number: 20040254201
    Abstract: Disclosed are compounds of the formula
    Type: Application
    Filed: July 9, 2004
    Publication date: December 16, 2004
    Inventors: Bernard Belleau, Pierette Belleau, Dilip M. Dixit, Nghe Nguyen-Ba
  • Synthesis of substituted 1,3-dioxolanes and substituted 1,3-oxathiolanes with antiviral properties
    Publication number: 20030087918
    Abstract: Disclosed are compounds of the formula
    Type: Application
    Filed: February 12, 2002
    Publication date: May 8, 2003
    Applicant: BioChem Pharma Inc.
    Inventors: Bernard Belleau, Pierette Belleau, Dilip Dixit, Nghe Nguyen-Ba
  • SUBSTITUTED-1,3-OXATHIOLANES AND SUBSTITUTED-1,3-DIOXOLANES WITH ANTIVIRAL PROPERTIES
    Publication number: 20010020026
    Abstract: Disclosed are compounds of the formula
    Type: Application
    Filed: October 15, 1998
    Publication date: September 6, 2001
    Inventors: BERNARD BELLEAU, PIERETTE BELLEAU, NGHE NGUYEN-BA