Total Synthesis of <i>Campylobacter jejuni</i> NCTC11168 Capsular Polysaccharide via the Intramolecular Anomeric Protection Strategy
作者:Chun-Hong Yeh、Ya-Jou Chang、Tsung-Juin Lin、Cheng-Chung Wang
DOI:10.1021/jacs.3c00102
日期:2023.4.26
diarrhea disease, which is highly fatal to young children in unindustrialized countries. Developing a new therapy is required due to increasing antibiotic resistance. Herein, we described a total synthesis of a C. jejuni NCTC11168 capsular polysaccharide repeating unit containing a linker moiety via an intramolecular anomeric protection (iMAP) strategy. This one-step 1,6-protecting method structured
空肠弯曲杆菌的感染导致严重的腹泻病,这对未工业化国家的幼儿来说是高度致命的。由于抗生素耐药性增加,需要开发新疗法。在此,我们描述了空肠弯曲杆菌的全合成NCTC11168 荚膜多糖重复单元通过分子内端基异构保护 (iMAP) 策略包含连接部分。这种一步 1,6-保护方法构建了具有挑战性的呋喃糖基半乳糖胺构型,促进了进一步简明的区域选择性保护,并使庚糖合成顺利进行。四糖以[2+1+1]的方式构建。这种复杂的CPS四糖的合成只用了28个步骤,包括所有结构单元的制备、四糖骨架的构建和官能团的转化。