Acceptor-Dependent Stereoselective Glycosylation: 2‘-CB Glycoside-Mediated Direct β-<scp>d</scp>-Arabinofuranosylation and Efficient Synthesis of the Octaarabinofuranoside in Mycobacterial Cell Wall
作者:Yong Joo Lee、Kyunghoon Lee、Eun Hye Jung、Heung Bae Jeon、Kwan Soo Kim
DOI:10.1021/ol0510668
日期:2005.7.1
A reliable and generally applicable direct method for the stereoselective beta-arabinofuranosylation employing a 2'-carboxybenzyl arabinofuranoside as the glycosyl donor has been established. The acyl-protective group on glycosyl acceptors is essential for the beta-stereoselectivity. The power of the present acceptor-dependent glycosylation method was demonstrated by the efficient synthesis of the octaarabinofuranoside in arabinogalactan and lipoarabinomannan found in mycobacterial cell wall.
Synthesis of arabinofuranosides via low-temperature activation of thioglycosides
作者:Haifeng Yin、Todd L Lowary
DOI:10.1016/s0040-4039(01)01133-9
日期:2001.8
The synthesis of oligosaccharides containing arabinofuranose residues is reported. Coupling of thioglycoside donors 4, 6, or 7 and with acceptors 8-17 using N-iodosuccinimide and silver triflate activation provided glycosides with varying degrees of stereocontrol. (C) 2001 Elsevier Science Ltd. All rights reserved.