Stereocontrolled synthesis of imidazolo[1,5]hexopiperidinoses and imidazol-4(5)-yl-C-glycosides
作者:Andrzej Frankowski、Dariusz Deredas、Estelle Dubost、François Gessier、Stefan Jankowski、Markus Neuburger、Czesława Seliga、Théophile Tschamber、Kamil Weinberg
DOI:10.1016/s0040-4020(03)01055-x
日期:2003.8
5]hexopiperidinoses 2–6 and imidazol-4(5)-yl C-glycosides 7–9 are reported. The crucial step of this approach relies upon the SN2-type cyclisation of selectively protected C(1), C(2), C(3) and C(5)-substituted 1-[imidazol-4(5)-yl]pentitols in which the imidazole nitrogen or the C(1)-connected oxygen are involved as the competitive nucleophilic centers, respectively. Six selected imidazolosugars were evaluated as potential
咪唑并的合成[1,5] hexopiperidinoses 2 - 6(5) -基和咪唑-4- Ç -glycosides 7 - 9报道的。该方法的关键步骤取决于选择性保护的C(1),C(2),C(3)和C(5)取代的1- [咪唑-4(5)-yl的S N 2型环化]戊醇,其中咪唑氮或C(1)连接的氧参与竞争的亲核中心。评价了六种选择的咪唑并乳糖醛作为糖苷酶的潜在抑制剂。