De Novo Asymmetric Synthesis and Biological Evaluation of the Trisaccharide Portion of PI-080 and Vineomycin B2
作者:Xiaomei Yu、George A. O’Doherty
DOI:10.1021/ol801817f
日期:2008.10.16
diastereoselective synthesis of an alpha-L-aculose, alpha-L-rhodinose, and beta-D-olivose trisaccharide is described. The key transformations include the palladium-catalyzed glycosylation, Myers' reductive rearrangement, diastereoselective dihydroxylation, and regioselective Mitsunobu inversion. Significant apoptotic antitumor activity was found for this trisaccharide, which has implication for vineomycin B2 and
描述了α-L-锐藻糖,α-L-若丹糖和β-D-寡糖三糖的高度对映体和非对映体选择性合成。关键的转化包括钯催化的糖基化,迈尔斯的还原重排,非对映选择性二羟基化和区域选择性光延。发现该三糖具有显着的凋亡抗肿瘤活性,这与葡萄霉素B2和PI-080的构效关系有关。