Patents by Inventor Rao R. Koganty

Rao R. Koganty 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).

  • Stereodirected process for synthesis of .alpha.-N-acetylgalactosaminides
    Patent number: 5837830
    Abstract: A stereodirected process for synthesizing .alpha.-N-acetylgalactosaminides from N-acetylgalactosamine which, in a preferred embodiment, comprises:reacting N-acetylgalactosamine with a dialkyl acetal of an aldehyde or ketone to form a 4,6-O-alkylidene derivative;reacting said 4,6-O-alkylidene derivative with a protecting group compound to attach a protecting group selectively to 3-OH of said derivative to form a 3-O-protected derivative;reacting said 3-O-protected derivative with an anomeric group to form a glycosyl donor;reacting said glycosyl donor with an alcohol to form an N-acetylgalactosaminide.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: November 17, 1998
    Assignee: Biomira, Inc.
    Inventors: Rao R. Koganty, Sham Gandhi