The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 2008
Filed:
Jun. 18, 2004
Julio A. Camarero, Livermore, CA (US);
Alexander R. Mitchell, Livermore, CA (US);
James J. DE Yoreo, Clayton, CA (US);
Julio A. Camarero, Livermore, CA (US);
Alexander R. Mitchell, Livermore, CA (US);
James J. De Yoreo, Clayton, CA (US);
Lawrence Livermore National Security, LLC, Livermore, CA (US);
Abstract
Disclosed herein is a new method for the solid phase peptide synthesis (SPPS) of C-terminal peptide α thioesters using Fmoc/t-Bu chemistry. This method is based on the use of an aryl hydrazine linker, which is totally stable to conditions required for Fmoc-SPPS. When the peptide synthesis has been completed, activation of the linker is achieved by mild oxidation. The oxidation step converts the acyl-hydrazine group into a highly reactive acyl-diazene intermediate which reacts with an α-amino acid alkylthioester (H-AA-SR) to yield the corresponding peptide α-thioester in good yield. A variety of peptide thioesters, cyclic peptides and a fully functional Src homology 3 (SH3) protein domain have been successfully prepared.