The 2,4-dimethylpent-3-yloxycarbonyl (Doc) group as a new, nucleophile-resistant protecting group for tyrosine in solid phase peptide synthesis
作者:Katri Rosenthal、Amelie Karlström、Anders Undén
DOI:10.1016/s0040-4039(96)02471-9
日期:1997.2
The 2,4-dimethylpent-3-yloxycarbonyl (Doc) group is presented as a new protecting group for tyrosine. The Doc group is 1000-fold more stable towards the nucleophile piperidine than the commonly used 2-bromobenzyloxycarbonyl (2-BrZ) group is, and it is completely cleaved by hydrogen fluoride.
2,4-二甲基戊-3-基氧基羰基(Doc)基团是酪氨酸的新保护基。Doc基团对亲核哌啶的稳定性比通常使用的2-溴苄氧羰基(2-BrZ)基团高1000倍,并且可以被氟化氢完全裂解。