Synthesis of a Ketomethylene Isostere of the Fibrillating Peptide SNNFGAILSS
摘要:
The direct synthesis of a ketomethylene isostere of the fibril-forming decapeptide SNNFGAILSS is presented with the goal of understanding how small structural changes alter the ability of such peptides to recognize each other for beta-sheet formation. The key synthetic step relies on a SmI2-mediated coupling of a N-tetrapeptidyl oxazolidinone with a simple acrylate followed by deprotection of the carboxylic acid and a peptide coupling step with the pentapeptide H-AILSS-NH2.
Synthesis of a Ketomethylene Isostere of the Fibrillating Peptide SNNFGAILSS
作者:Tina Mittag、Daniel E. Otzen、Niels Chr. Nielsen、Troels Skrydstrup
DOI:10.1021/jo901466b
日期:2009.10.16
The direct synthesis of a ketomethylene isostere of the fibril-forming decapeptide SNNFGAILSS is presented with the goal of understanding how small structural changes alter the ability of such peptides to recognize each other for beta-sheet formation. The key synthetic step relies on a SmI2-mediated coupling of a N-tetrapeptidyl oxazolidinone with a simple acrylate followed by deprotection of the carboxylic acid and a peptide coupling step with the pentapeptide H-AILSS-NH2.