Amino acid bromides: their utilization for difficult couplings in solid-phase peptide synthesis
作者:Minghong Ni、Emiliano Esposito、Bernard Kaptein、Quirinus B. Broxterman、Alma Dal Pozzo
DOI:10.1016/j.tetlet.2005.07.017
日期:2005.9
Use of N-protected-α-amino acid bromides for facile solid-phase synthesis of peptides (SPPS) containing extremely sterically hindered non-proteinogenic amino acids is presented. Amino acid bromides (Aaa-Br), generated in situ, were used for the synthesis of long chain homopeptides containing up to eight successive α-MeVal or Aib residues. SPPS of a heteropeptide containing a very bulky amino acid building
提出了使用N-保护的-α-氨基酸溴化物用于容易地固相合成包含极受空间阻碍的非蛋白原性氨基酸的肽(SPPS)。原位生成的氨基酸溴化物(Aaa-Br)用于合成包含多达八个连续的α-MeVal或Aib残基的长链同系肽。还描述了含有非常庞大的氨基酸构件的异肽的SPPS。讨论了合适的N-保护的选择。