Synthesis of a d-rhamnose branched tetrasaccharide, repeating unit of the O-chain from Pseudomonas syringae pv. Syringae (cerasi) 435
作者:Emiliano Bedini、Antonella Carabellese、Maria Michela Corsaro、Cristina De Castro、Michelangelo Parrilli
DOI:10.1016/j.carres.2004.06.010
日期:2004.8
The first synthesis of a d-rhamnose branched tetrasaccharide, corresponding to the repeating unit of the O-chain from Pseudomonas syringae pv. cerasi 435, as methyl glycoside is reported. The approach used is based on the synthesis of an opportune building-block, that is the methyl 3-O-allyl-4-O-benzoyl-alpha-D-rhamnopyranoside, which was then converted into both a glycosyl acceptor and two different
d-鼠李糖支链四糖的首次合成,对应于丁香假单胞菌pv的O链重复单元。cerasi 435,因为报道了甲基糖苷。所使用的方法基于适当的构建基的合成,即甲基3-O-烯丙基-4-O-苯甲酰基-α-D-鼠李糖吡喃糖苷,然后将其转化为糖基受体和两个不同的保护基糖基三氯乙酰亚胺供体。这三种化合物的连续偶联提供了目标寡糖。所报道的合成对于进行重复单元的低聚反应也是有用的。