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    New thioglycoside derivatives for use in odourless synthesis of MUXF3 N-glycan fragments related to food allergens
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    Synthesis of the C-glycosidic analogue 9 of adenophostin A, a very potent IP3 receptor agonist, and its uracil congener 10 was achieved via a temporary silicon-tethered radical coupling reaction as the key step. Phenyl 3,4,6-tri-O-(p-methoxybenzyl)-1-seleno-β-d-glucopyranoside (27) and 3-deoxy-3-methylene-1,2-O-isopropylidene-α-d-erythro-pentofuranose (30) were connected by a dimethylsilyl tether to give the radical coupling reaction substrate 24, which was successively treated with Bu3SnH/AIBN in benzene and TBAF in THF to give the coupling product 25 with the desired (3α,1'α)-configuration as the major product. From 25, the targets 9 and 10 were synthesized via introduction of adenine or uracil base by Vorbrüggen's method and phosphorylation of the hydroxyls by the phosphoramidite method.
    Glycosidic bond
    Phosphoramidite
    Uracil
    Coupling reaction
    Trisaccharide
    Citations (32)
    Among sulfur-containing species, thiophenol (PhSH) is highly toxic but is uncommonly studied. Here a novel probe is reported for thiophenol with rapid response and high selectivity. Thiophenol was easily distinguished by this probe from other sulfur-containing species including anions and biothiols. The probe was employed for the determination of thiophenol in several buffer systems and in living cells, demonstrating suitability for future work.
    Thiophenol
    This paper describes the effect of thiophenol concentration on photochemical rearrangement of 2-phenylthio-3-aminocyclohexanols to the corresponding protected aminoaldehydes. The obtained aminoaldehyde is in equilibrium with its corresponding deoxyazasugar. The latter could be converted to the corresponding dehydropiperidine with a good yield in the same reaction media by controlling the thiophenol concentration. Also a proposed mechanism for this one pot transformation is reported.
    Thiophenol
    2-Halogenobenzimidazoles react with thiophenol as well as with benzenethiolate ion. The reaction also occurs in acidic medium. The effect on the reaction of structural modifications in the benzimidazole and in the thiophenol have been investigated. The general kinetic equation Rate =k1[B][ArS–]+k2[BH+][ArSH]+k3[BH+][ArS–] is proposed to explain the overall reaction.
    Thiophenol
    Benzimidazole
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