A new generation of reversible backbone-amide protection for the solid phase synthesis of difficult sequences
作者:Jo Howe、Martin Quibell、Tony Johnson
DOI:10.1016/s0040-4039(00)00537-2
日期:2000.5
A versatile safety catch backbone-amide protection system (1, 2) has been developed to inhibit interchain aggregation during solid phase peptide synthesis. The strategy utilises the Nα-Fmoc derivative of an N-(3-methylsulfinyl-4-methoxy-6-hydroxybenzyl) (SiMB, 2) substituted amino acid (5b), a group which exhibits excellent all round coupling kinetics. The value of these improved derivatives is demonstrated
一种多功能安全掣子骨架酰胺保护系统(1,2)在固相肽合成已开发用于抑制链间聚集。该策略利用了Ñ α -一个的的Fmoc衍生物ñ - (3-甲基亚磺酰基-4-甲氧基-6-羟基苄基)(SIMB,2取代的氨基酸()5B),其表现出优异的所有轮耦合动力学的基团。通过亮氨酸enkephalinamide(的合成显示了这些改进的衍生物的值9),并从酰基载体蛋白的公知的“困难序列”的残基(65-74)(10)通过标准的铀活化和五氟苯基酯化学反应。