作者:Christian Leumann、Arben Haziri、Peter Silhar、Dorte Renneberg
DOI:10.1055/s-0029-1218650
日期:2010.3
present the novel synthesis of two sugar units that are central intermediates for the formation of members of the bicyclo-DNA and -RNA family. The synthesis starts from commercially available 1,2:5,6-di-O-isopropylidene-α-d-glucofuranose. The key step involves the elaboration of a carbocyclic ring in a furanoside by rhodium(I)-catalyzed hydroacylation. Via this pathway, one of the sugar units is available
我们介绍了两个糖单元的新颖合成,这两个糖单元是双环DNA和-RNA家族成员形成的中心中间体。合成从可商购的1,2:5,6-二-O-异亚丙基-α - d-葡萄糖呋喃糖开始。关键步骤涉及通过铑(I)催化的氢酰化作用在呋喃糖苷中修饰一个碳环。通过这种途径,其中一个糖单元可以8步获得,总收率为27%,而其脱氧衍生物可以11步获得,这比我们以前合成该化合物少了5步。 糖苷-稠环系统-DNA-铑-催化