title: Convergent synthesis of a trisaccharide as its 2-(trimethylsilyl)ethyl glycoside related to the flavonoid triglycoside from Gymnema sylvestre.
abstract: The glycone part of the flavonoid triglycoside, kaempferol 3-O-beta-D-glucopyranosyl-(1-->4)-alpha-L-rhamnopyranosyl-(1-->6)-beta-D-galactopyranoside, has been synthesized in good yield and stereoselectivity using N-iodosuccinimide and HClO4-silica promoted glycosylations of thioglycoside donors.
authors.affiliation: Centre for Carbohydrate Chemistry, School of Chemical Sciences and Pharmacy, University of East Anglia, Norwich NR4 7TJ, UK.
authors.forename: Balaram
authors.initials: B
authors.lastname: Mukhopadhyay
authors.forename: Robert A
authors.initials: RA
authors.lastname: Field
mesh_terms: D006031:Glycosylation; D044949:Kaempferols / Q000138:chemical synthesis*; D009844:Oligosaccharides / Q000138:chemical synthesis*; D013388:Succinimides / Q000737:chemistry; D013865:Thioglycosides / Q000737:chemistry; D014297:Trimethylsilyl Compounds / Q000737:chemistry; D014312:Trisaccharides / Q000138:chemical synthesis*
chemical_list: D044949:Kaempferols; D009844:Oligosaccharides; D013388:Succinimides; D013865:Thioglycosides; D014297:Trimethylsilyl Compounds; D014312:Trisaccharides; C492897:kaempferol 3-O-glucopyranosyl-1-4-rhamnopyranosyl-1-6-galactopyranoside