Merkx Remco, van Haren Matthijs J, Rijkers Dirk T S, Liskamp Rob M J
Department of Medicinal Chemistry and Chemical Biology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P. O. Box 80082, 3508 TB Utrecht, The Netherlands.
J Org Chem. 2007 Jun 8;72(12):4574-7. doi: 10.1021/jo0704513. Epub 2007 May 12.
This paper describes an optimized protocol for the efficient loading of resin-bound aminoethane sulfonyl azides by either Boc- or Fmoc-protected amino thioacids. The resulting N-acyl sulfonamide is a convenient linker for use in Boc- or Fmoc-based solid-phase peptide synthesis. Activation of the N-acyl sulfonamide via a microwave-assisted alkylation procedure and subsequent treatment with functionalized nucleophiles yields C-terminally modified peptides that can be applied in chemoselective (bio)conjugation or ligation reactions.
本文描述了一种优化的方案,用于通过Boc或Fmoc保护的氨基硫代酸高效负载到树脂结合的氨基乙烷磺酰叠氮化物上。所得的N-酰基磺酰胺是一种方便的连接子,可用于基于Boc或Fmoc的固相肽合成。通过微波辅助烷基化程序激活N-酰基磺酰胺,并随后用功能化亲核试剂处理,可得到C端修饰的肽,可应用于化学选择性(生物)共轭或连接反应。