Patents by Inventor Albrecht Zumbrunn

Albrecht Zumbrunn 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).

  • Process for the preparation of (2R,3S)-2-(hydroxymethyl)-5-methoxytetrahydrofuran-3-OL and acetylated derivatives thereof, free of pyranose compounds
    Patent number: 8637649
    Abstract: A method of preparing a ribofuranose derivative essentially free of pyranose compounds includes a step of contacting a solution of MDR containing MDRP as an impurity in a solvent including methanol and/or tetrahydrofuran with at least one alkali metal periodate under conditions sufficient to oxidize at least a portion of the MDRP. MDR containing at most 5 wt % of MDRP based on the total weight of MDR and MDRP may be produced.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: January 28, 2014
    Assignee: Johnson Matthey Public Limited Co.
    Inventors: Xing Fu, Albrecht Zumbrunn
  • PROCESS FOR THE PREPARATION OF (2R,3S)-2-(HYDROXYMETHYL)-5-METHOXYTETRAHYDROFURAN-3-OL AND ACETYLATED DERIVATIVES THEREOF, FREE OF PYRANOSE COMPOUNDS
    Publication number: 20120238734
    Abstract: A method of preparing a ribofuranose derivative essentially free of pyranose compounds includes a step of contacting a solution of MDR containing MDRP as an impurity in a solvent including methanol and/or tetrahydrofuran with at least one alkali metal periodate under conditions sufficient to oxidize at least a portion of the MDRP. MDR containing at most 5 wt % of MDRP based on the total weight of MDR and MDRP may be produced.
    Type: Application
    Filed: November 23, 2011
    Publication date: September 20, 2012
    Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    Inventors: Xing Fu, Albrecht Zumbrunn