The 2,2-Dimethyl-2-(<i>ortho</i>-nitrophenyl)acetyl (DMNPA) Group: A Novel Protecting Group in Carbohydrate Chemistry
作者:Hui Liu、Si-Yu Zhou、Guo-En Wen、Xu-Xue Liu、De-Yong Liu、Qing-Ju Zhang、Richard R. Schmidt、Jian-Song Sun
DOI:10.1021/acs.orglett.9b03025
日期:2019.10.4
2,2-dimethyl-2-(ortho-nitrophenyl)acetyl (DMNPA) group was introduced to synthetic carbohydrate chemistry as a protecting group (PG) for the first time. Benefiting from a unique chemical structure and novel deprotection conditions, the DMNPA group can be cleaved rapidly and mutually orthogonal to other PGs. Orchestrated application of the DMNPA group with other PGs led to the highly efficient synthesis
首次将2,2-二甲基-2-(邻
硝基苯基)乙酰基(
DMNPA)作为保护基(
PG)引入到合成
碳水化合物化学中。得益于独特的
化学结构和新颖的脱保护条件,
DMNPA基团可以快速裂解并与其他
PG相互正交。
DMNPA基团与其他
PG的协同应用导致了高效合成荆芥苷A的聚糖。