本文中,我们仅使用市售的d-葡萄糖和d-葡萄糖胺盐酸盐报告了化学合成新的透明质酸低聚物的方法。合成了各种受保护的透明质酸二糖,在β- d-葡萄糖醛酸部分的C-6处带有新的官能团,以期进行结构相关的生物学活性测试。正交保护基图案允许容易地获得相应的高级低聚物。同样,对新衍生物的1 H NMR研究证明了各种官能团对分子内电子环境的影响。
本文中,我们仅使用市售的d-葡萄糖和d-葡萄糖胺盐酸盐报告了化学合成新的透明质酸低聚物的方法。合成了各种受保护的透明质酸二糖,在β- d-葡萄糖醛酸部分的C-6处带有新的官能团,以期进行结构相关的生物学活性测试。正交保护基图案允许容易地获得相应的高级低聚物。同样,对新衍生物的1 H NMR研究证明了各种官能团对分子内电子环境的影响。
Multi-Gram Synthesis of a Hyaluronic Acid Subunit and Synthesis of Fully Protected Oligomers
作者:Mickaël Virlouvet、Michael Gartner、Katarzyna Koroniak、Jonathan P. Sleeman、Stefan Bräse
DOI:10.1002/adsc.201000008
日期:2010.10.4
Fullyprotected tetra-, hexa- and octasaccharides of hyaluronic acid were synthesized on a scale of several 100 mg up to gram quantities using allyl (methyl 2-O-benzoyl-3-O-benzyl-4-O-levulinoyl-β-D-glucopyranosyluronate)-(13)-4-O-acetyl-6-O-benzyl-2-deoxy-2-trichloroacetamido-β-D-glucopyranoside as a key building block. This disaccharide was subjected to deprotection, then glycosylation via the trichloroacetimidate
Toward the modular synthesis of glycosaminoglycans: synthesis of hyaluronic acid disaccharide building blocks using a periodic acid oxidation
作者:Emma R. Palmacci、Peter H. Seeberger
DOI:10.1016/j.tet.2004.06.037
日期:2004.8
The synthesis of two differentially protected GluNAc-β(1→4)-GluA and GluA-β(1→3)-GluNAc disaccharide modules for the solid-phase assembly of hyaluronicacid are described. A periodic acid/chromium trioxide oxidation was the key transformation to facilitate access to the glucuronic acid moiety from glucose and should find wide application in the oxidation of primary alcohols.