Patents by Inventor Yoshinori Gosyo

Yoshinori Gosyo 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).

  • Photodissociable protective group
    Patent number: 8222429
    Abstract: The present invention provides a photolabile protecting group that can be removed by light irradiation under mild conditions. More specifically, the present invention provides a method comprising protecting a reactive functional group (e.g., a hydroxyl group, amino group, carboxyl group, carbonyl group, phosphodiester group, etc.) by the photolabile protecting group, and then removing the photolabile protecting group simply by light irradiation under neutral conditions. The present invention relates to a compound represented by Formula (3): wherein Ar1 is an optionally substituted aromatic or heteroaromatic ring, Ar2 is an optionally substituted aryl or heteroaryl group, X is a leaving group, and n is an integer of 1 or 2; and a method of protecting and deprotecting an amino group etc. using the compound.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: July 17, 2012
    Assignee: National University Corporation Nara Institute of Science and Technology
    Inventors: Kazuki Sugawara, Yoshinori Gosyo
  • PHOTODISSOCIABLE PROTECTIVE GROUP
    Publication number: 20110028738
    Abstract: The present invention provides a photolabile protecting group that can be removed by light irradiation under mild conditions. More specifically, the present invention provides a method comprising protecting a reactive functional group (e.g., a hydroxyl group, amino group, carboxyl group, carbonyl group, phosphodiester group, etc.) by the photolabile protecting group, and then removing the photolabile protecting group simply by light irradiation under neutral conditions. The present invention relates to a compound represented by Formula (3): wherein Ar1 is an optionally substituted aromatic or heteroaromatic ring, Ar2 is an optionally substituted aryl or heteroaryl group, X is a leaving group, and n is an integer of 1 or 2; and a method of protecting and deprotecting an amino group etc. using the compound.
    Type: Application
    Filed: January 8, 2009
    Publication date: February 3, 2011
    Applicant: National University Corporation Nara Institute of Science and Technology
    Inventors: Kiyomi Kakiuchi, Ken Tsutsumi, Satoru Kitani, Kazuki Sugawara, Yoshinori Gosyo