Epimerization-Free Block Synthesis of Peptides from Thioacids and Amines with the Sanger and Mukaiyama Reagents
作者:David Crich、Indrajeet Sharma
DOI:10.1002/anie.200805782
日期:2009.3.16
reaction of C‐terminal thioacids derived from protected amino acids and peptides with the Sanger reagent and other electron‐deficient aryl halides in the presence of a free amine immediately form a peptide bond with the amine. This essentially epimerization‐free method was used for the 4+4 block synthesis of a hindered octapeptide (see scheme; Boc, Pbf, and Trt are protectinggroups).
[EN] PIPECOLIC LINKER AND ITS USE FOR CHEMISTRY ON SOLID SUPPORT<br/>[FR] LIEUR PIPÉCOLIQUE ET SON UTILISATION POUR UNE CHIMIE SUR SUPPORT SOLIDE
申请人:CENTRE NAT RECH SCIENT
公开号:WO2010023295A1
公开(公告)日:2010-03-04
The present invention relates to a pipecolic linker and its use as a solid-phase linker in organic synthesis. Said pipecolic solid-phase linker may be used for coupling functional groups chosen between primary amines, secondary amines, aromatic amines, alcohols, phenols and thiols. In particular, said pipecolic solid-phase linker may be used for peptide or pseudopeptide synthesis, such as the reverse N to C peptide synthesis or the retro-inverso peptide synthesis, or for the synthesis of small organic molecules.
of Trp residues in shortpeptides (66–80% yield) and the synthesis of various CF3S-analogues of biologically active monoamines. To prove the concept, Fmoc-(CF3S)Tyr and -Trp were incorporated into the endomorphin-1 chain (EM-1) and into model tripeptides by solid-phasepeptidesynthesis. A remarkable enhancement of the local hydrophobicity of the trifluoromethylthiolated peptides was quantified by the