Introduction of the Aib-Pro unit into peptides by means of the ‘azirine/oxazolone method’ on solid phase
作者:Simon Stamm、Heinz Heimgartner
DOI:10.1016/j.tet.2006.07.082
日期:2006.10
A method for the direct introduction of Aib-Pro into peptides on solid phase was developed. The Aib-Pro unit was introduced by means of the ‘azirine/oxazolone method’ using allyl N-(2,2-dimethyl-2H-azirin-3-yl)-l-prolinate as the synthon. After the reaction of the resin-bound amino or peptide acid with allyl N-(2,2-dimethyl-2H-azirin-3-yl)-l-prolinate, the allyl protecting group of the resulting extended
开发了一种将Aib-Pro直接引入固相肽段的方法。的AIB-Pro的单元是由“氮杂环丙烯/恶唑酮的方法”使用烯丙基的手段引入Ñ(2,2-二甲基-2 - ħ -azirin -3-基)-L-脯氨酸作为合成子。在树脂结合的氨基酸或肽酸与N-(2,2-二甲基-2 H-叠氮基-3-基)-1-脯氨酸烯丙酯反应后,可以通过以下方法除去所得延伸肽的烯丙基保护基轻度Pd 0-促进程序。用352nm的紫外光从树脂上切割肽,得到C端保护的肽。该方法成功地用于合成不同的含有肽醇片段的Aib-Pro。此外,通过节段缩合制备了肽抗生素Trichovirin I 1B的受保护衍生物。