Patents by Inventor Gilberto M. A. Guterres

Gilberto M. A. Guterres 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).

  • Reagent for removing protective groups in peptide synthesis
    Patent number: 4950418
    Abstract: Reagent for removing protective groups employed in peptide synthesis comprises a combination of hard acid and soft base. The hard acid is trialkylsilyltrifluoromethanesulphonate R.sub.3 SiO.sub.3 SCF.sub.3 and the soft base is ether. The reagent provides high efficiency of deprotection and has a low tendency to cause side reaction.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: August 21, 1990
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Haruaki Yajima, Nobutaka Fujii, Gilberto M. A. Guterres, Tatsuhiko Honguu