Tetrahydropyranyl, a Nonaromatic Acid-Labile Cys Protecting Group for Fmoc Peptide Chemistry
作者:Iván Ramos-Tomillero、Hortensia Rodríguez、Fernando Albericio
DOI:10.1021/acs.orglett.5b00444
日期:2015.4.3
Tetrahydropyranyl (Thp), which exploits the concept of being an S,O-acetal nonaromatic protecting group for cysteine, has been shown to be superior to Trt, Dpm, Acm, and StBu in solid-phase peptide synthesis using the Fmoc/tBu strategy. Thus, Cys racemization and C-terminal 3-(1-piperidinyl)alanine formation were minimized when the Cys was protected with Thp. This nonaromatic protecting group also
四氢吡喃基(THP),其利用的是一个概念小号,ö -acetal非芳香族保护基为半胱氨酸,已被证明优于TRT,DPM,ACM,和S吨在使用Fmoc固相肽合成BU / t Bu策略。因此,当Cys被Thp保护时,Cys外消旋作用和C末端3-(1-哌啶基)丙氨酸的形成被最小化。该非芳族保护基团还改善了含Cys的被保护肽的溶解性。