作者:Xingang Zhang、Weijuan Ni、Wilfred A. van der Donk
DOI:10.1021/jo051182o
日期:2005.8.1
The synthesis of six nonproteinogenic amino acids appropriately protected for Fmoc-based solid-phase peptide synthesis is described. These amino acids are (2S,3R)-vinylthreonine, (2S)-(E)-2-amino-5-fluoro-pent-3-enoic acid (fluoroallylglycine), (S)-β2-homoserine, (S) and (R)-β3-homocysteine, and (2R,3R)-methylcysteine. Once incorporated into peptides, these compounds were envisioned to serve as alternative
描述了六种经过适当保护的非蛋白氨基酸的合成,用于基于 Fmoc 的固相肽合成。这些氨基酸是( 2S , 3R )-乙烯基苏氨酸、( 2S )-( E )-2-氨基-5-氟-戊-3-烯酸(氟烯丙基甘氨酸)、( S ) -β2-高丝氨酸、 ( S)和( R )-β 3-同型半胱氨酸,和( 2R , 3R )-甲基半胱氨酸。一旦掺入肽中,这些化合物有望作为羊毛硫抗生素合酶的替代底物,羊毛硫抗生素合酶使肽底物中的丝氨酸和苏氨酸残基脱水,并催化随后半胱氨酸与脱氢氨基酸的分子内迈克尔型加成。