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  • Title: Synthesis of cerebroside, lactosyl ceramide, and ganglioside GM3 analogs containing beta-thioglycosidically linked ceramide.
    Author: Hasegawa A, Morita M, Kojima Y, Ishida H, Kiso M.
    Journal: Carbohydr Res; 1991 Jul 18; 214(1):43-53. PubMed ID: 1954633.
    Abstract:
    Coupling of the sodium salt of 2,3,4,6-tetra-O-acetyl-1-thio-beta-D-glucopyranose, -beta-D-galactopyranose, O-(2,3,4,6-tetra-O-acetyl-beta-D-galactopyranosyl)-(1----4)-2,3,6-tri-O- acetyl- 1-thio-beta-D-glucopyranose, or O-(methyl 5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-D-glycero-alpha-D-galacto -2- nonulopyranosylonate)-(2----3)-O-(2,3-di-O-acetyl-6-O-bezoyl -beta-D- galactopyranosyl)-(1----4)-3-O-acetyl-2,6-di-O-benzoyl-1-thio-beta-D- glucopyranose, which were prepared from the corresponding 1-S-acetates, 1, 3, 6, and 9, with (2S,3R,4E)-2-azido-3-O-benzoyl-1-O-(p-tolylsulfonyl)-4-oc tadecene-1,3-diol (12) derived by tosylation of 11, gave the corresponding beta-thioglycosides 13, 17, 21, and 25, respectively in good yield. The beta-thioglycosides obtained were converted, via selective reduction of the azide group, condensation with octadecanoic acid, and removal of the protecting groups, into the title compounds.
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