Patents by Inventor Huayun Yu

Huayun Yu 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).

  • Method for preparing amino acid esters of nucleoside analogues
    Publication number: 20060178512
    Abstract: Describes a process for preparing esters of nucleoside analogues comprising condensing a nucleoside analogue with a protected amino acid in the presence of a tertiary amine and in the presence of an activating amount of an activating agent chosen from organo phosphoryl halide, organo phosphinic halide, aliphatic sulfonyl halide, and aromatic sulfonyl halide.
    Type: Application
    Filed: February 4, 2005
    Publication date: August 10, 2006
    Inventors: Cheruthur Govindan, Alain Burgos, Huayun Yu, Sarah Topper