Synthesis of Selectively Labeled <scp>d</scp>-Fructose and <scp>d</scp>-Fructose Phosphate Analogues Locked in the Cyclic Furanose Form
作者:Rachel Persky、Amnon Albeck
DOI:10.1021/jo0003908
日期:2000.9.1
emphasis on selective (2)H labeling of these compounds, as a model for (3)H incorporation, which will be used for further biochemical studies. A key cyclization step, based on a benzyl ether nucleophilic attack on an activated alcohol, constructed the ring system. The stereochemistry at C(2) (alpha/beta anomers) and at C(5) (D sugar) was controlled by selective epimerizations. Mono- and diphosphate analogues
2,5-脱水葡萄糖醇和2,5-脱水甘露醇及其6-磷酸酯和1,6-二磷酸酯衍生物是D-果糖呋喃糖,D-果糖呋喃糖-6-磷酸盐和D-果糖呋喃糖的α和β端基异构体的环状类似物。 1,6-二磷酸。它们是由受保护的D-甘露糖或D-葡萄糖合成的。合成方法的开发着重于这些化合物的选择性(2)H标记,作为(3)H掺入的模型,将用于进一步的生化研究。基于对活性醇的苄基醚亲核攻击,关键的环化步骤构建了环系统。在C(2)(alpha / beta异构体)和在C(5)(D糖)的立体化学是由选择性差向异构控制的。通过改变去保护和磷酸化步骤的顺序,可以从同一中间体获得单磷酸酯和二磷酸酯类似物。