作者:Soumendu Paul、Matthias Müller、Richard R. Schmidt
DOI:10.1002/1099-0690(200301)2003:1<128::aid-ejoc128>3.0.co;2-s
日期:2003.1
This paper describes a synthesis of trisaccharide 1 by reiterative intramolecular glycosidation with 5-(bromomethyl)-2-methylbenzoic acid (5a) as starting material for the generation of a rigid spacer. Intramolecular glycosidation of donor-acceptor-tethered compound 24 yielded disaccharide 25. Transesterification of 25 afforded 26, which generated a new linking centre for the next spacer. Repetition of the previous cycle on 26 yielded trisaccharide 1, which again presents an extension point for the synthesis of higher saccharides. ((C) Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2003).