Synthesis of Laminin Hexasaccharide Analogue
作者:
Xianglan Ding,
Fanzuo Kong,
期刊:
Journal of Carbohydrate Chemistry
(Taylor Available online 1998)
卷期:
Volume 17,
issue 6
页码: 915-922
ISSN:0732-8303
年代: 1998
DOI:10.1080/07328309808007463
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The synthesis of laminin hexasaccharide analogue di-O-[Gal-β-(1→4)-Glc-β]-(1→2)-(1→6)-man-α-(1→6)-man-α-Me derivative (1) was achieved with 1,2-anhydromannopyranose benzyl ether (3) as the key intermediate. Coupling of3with methyl 2,3,4-tri-O-benzyl-α-D-mannopyranoside (4) promoted by ZnCl2gave methyl 2,3,4-tri-O-benzyl-6-O-(3,4,6-tri-O-benzyl-α-D-mannopyranosyl)-α-D-mannopyranoside (2a). Selective 6-O-debenzylation of2bwith ZnCl2-Ac2O-HOAc followed by coupling with acetobromolactopyranose afforded1.
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