O-Aryl α,β-d-ribofuranosides: Synthesis & highly efficient biocatalytic separation of anomers and evaluation of their Src kinase inhibitory activity
作者:Raman K. Sharma、Sukhdev Singh、Rakesh Tiwari、Deendayal Mandal、Carl E. Olsen、Virinder S. Parmar、Keykavous Parang、Ashok K. Prasad
DOI:10.1016/j.bmc.2012.09.057
日期:2012.12
A series of peracetylated O-aryl α,β-d-ribofuranosides have been synthesized and an efficient biocatalytic methodology has been developed for the separation of their anomers which was otherwise almost impossible by column chromatographic or other techniques. The incubation of 2,3,5-tri-O-acetyl-1-O-aryl-α,β-d-ribofuranoside with Lipozyme® TL IM immobilized on silica led to the selective deacetylation
已经合成了一系列过乙酰化的O-芳基α,β- d-核呋喃糖苷,并且已经开发了用于分离其端基异构体的有效的生物催化方法,否则通过柱色谱法或其他技术几乎是不可能的。将2,3,5-三-O-乙酰基-1- O-芳基-α,β- d-核呋喃糖苷与固定在硅胶上的Lipozyme®TL IM一起孵育仅导致一个乙酰氧基的选择性脱乙酰,即C -5′- Oα-端基异构体的-乙酰氧基高于分子中存在的两个仲羟基衍生的其他乙酰氧基,也超过三个乙酰基基团(源自β-端基异构体的一个伯羟基和两个仲羟基)。该方法导致容易合成O-芳基d-核呋喃呋喃糖苷的α-和β-端基异构体。筛选所有的芳基呋喃核糖苷抑制Src激酶。1 - O-(3-甲氧基苯基)-β- d-核呋喃糖苷显示出最高的抑制Src激酶的活性(IC 50 = 95.0μM )。