Carbasugar Synthesis via Vinylogous Ketal: Total Syntheses of (+)-MK7607, (−)-MK7607, (−)-Gabosine A, (−)-Epoxydine B, (−)-Epoxydine C, <i>epi</i>-(+)-Gabosine E and <i>epi</i>-(+)-MK7607
作者:Soumik Mondal、Kana M. Sureshan
DOI:10.1021/acs.joc.6b01876
日期:2016.12.2
Carbasugars, the carbocyclic analogues of sugars, constitute an important class of natural products with more than 140 members known and have attracted much attention due to their diverse biological activities like anticancer, antibacterial, herbicidal, and various enzyme inhibitory activities. As many carbohydrates are involved in various cellular signaling pathways, there is great interest in synthesis
糖类的碳环类似物Carcarbugars构成了一类重要的天然产物,已知有140多个成员,并且由于其多种生物活性(如抗癌,抗菌,除草和各种酶抑制活性)而备受关注。由于许多碳水化合物参与各种细胞信号传导途径,因此人们对石竹的合成和生物学探索产生了极大的兴趣。本文中,我们已经开发出一种方法,通过在温和的酸性条件下乙烯基消除O保护基,在不同的肌醇和衍生物上安装α,β-不饱和醛官能团。我们已经通过七个Carbasugars的全部合成说明了我们的方法的多功能性和实用性。(-)-MK7607,(-)-葡萄糖苷A,(-)-环氧乙啶B,(-)-环氧丙啶C,(+)-MK7607、1-epi -(+)-MK7607和1- epi -(+)-gabosineE。