甲基α-1-鼠李糖吡喃糖苷和甲基α-d-甘露糖吡喃糖苷的2,3-二-O-糖基衍生物的合成和13 C NMR谱
摘要:
摘要描述了甲基α-1-鼠李糖吡喃糖苷(1-5)和α-d-甘露吡喃糖苷(6-9)的2,3-二-O-糖基衍生物的合成。下载:下载全尺寸图片XYXY 1α-l -Rha pα-d -Glc p 6α-l-Rha pα-d -Glc p 2α-d -Glc pα-l -Rha p 7α- d -Man pα-d -Glc p 3α-l-Rha pβ-d -Glc p 8β-l-Fuc pβ-1-Fuc p 4α-l-Rha pβ-1-Fuc p 9 α-1-Fuc pβ-1-Fuc p 5β-d-Glc pβ-d-Gal p与立体化学相关的三糖在13C NMR光谱中计算的加性偏差相似。
Synthesis of a Tri- and Tetrasaccharide Fragment Specific for the <i>Shigella flexneri</i> Serotype 5a <i>O</i>-Antigen. A Reinvestigation
作者:Laurence A. Mulard、Joël Ughetto-Monfrin
DOI:10.1080/07328309908544033
日期:1999.1.1
Stereocontrolled, stepwise synthesis of methyl α-L-rhamnopyranosyl-(1→2)-[α-D-glucopyranosyl-(1→3)]-α-L-rhamnopyranoside (A(E)B, 1) and methyl2-acetamido-2-deoxy-β-D-glucopyranosyl-(1→2)-α-L-rhamnopyranosyl-(1→2)-[α-D-glucopyranosyl-(1→3)]-α-L-rhamnopyranoside (DA(E)B, 2) is described; these constitute the methyl glycosides of fragments of the O-specific polysaccharide of Shigella flexneri serotype