Allyl 4-O-benzyl-~-L-rhamnopyranoside was converted into allyl 4-O-benzyl-3-O-methyl-oeL-rhamnopyranoside and this was condensed with 2,3,4-tri-O-acetyl-~-L-rhamnopyranosyl chloride to give a disaccharide derivative which was converted into allyl 4 This disaccharide derivative was condensed with 2,
Synthesis of 1,3-di-O-alkyl-2-O-(β-glycosyl)glycerols bearing oligosaccharides as hydrophilic groups
✍ Scribed by Hiroyuki Minamikawa; Teiichi Murakami; Masakatsu Hato
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 534 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0009-3084
No coin nor oath required. For personal study only.
✦ Synopsis
A novel series of synthetic glycolipids, i,3-di-O-alkyl-2-O-(/3-glycosyl)glycerols, and their efficient synthetic route were proposed. These glyceroglycolipids were synthesized in good overall yields and stereoselectivity in five steps via trichloroacetimidate glycosylation with 1,3-di-O-alkylglycerols. This route was applied to prepare the glycolipids bearing a cello-or malto-oligosaccharide with a definite number of sugar residues from one to six. Thin-layer chromatography, elemental analysis, nuclear magnetic resonance spectroscopy and infrared absorption spectroscopy confirmed that these glycolipids were chemically pure compounds.
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