作者:Olivia Andriuzzi、Christine Gravier-Pelletier、Yves Le Merrer
DOI:10.1016/j.tetlet.2004.08.172
日期:2004.10
The synthesis of C8-glycomimetics is described from C2-symmetrical polyhydroxylated cyclooctenes derived from carbocyclisation of enantiomerically pure 1,9-dienes by ring closing metathesis. Their obtention notably involved either hydroboration followed by oxidation to carbasugars or to cyclooctanones then reductive amination, or formation of a cis-cyclic sulfate followed by successive introduction
C8-糖模拟物的合成是从C 2对称多羟基化环辛烯描述的,所述C 2-对称多羟基化环辛烯是通过闭环易位从对映体纯的1,9-二烯的碳环化衍生而来的。它们的存在特别涉及硼氢化硼化,然后氧化为碳糖或环辛酮,然后还原胺化,或形成顺式环硫酸盐,随后依次引入叠氮基,还原和随后的还原胺化。与伏格列波糖类似,已经对几种市售的糖苷酶评估了C8-碳半乳糖和相关氨基环糖醇的生物活性。