Showing papers on "Aldose published in 1988"
51 citations
TL;DR: In this paper, a nouvelle reaction peut etre appliquee a la deprotection de tosylates de sucres et de derives de nucleosides.
Abstract: Cette nouvelle reaction peut etre appliquee a la deprotection de tosylates de sucres et de derives de nucleosides
50 citations
TL;DR: In this article, a high yielding synthesis of leukotriene A4 methyl ester using D-glucose as starting material is described, which uses DGL as the starting material.
31 citations
TL;DR: In this paper, the enantiomerically pure 1-(3-furyl)-1,2-dihydroxyethane derivatives 1 - (R), 2 -(R), 3 - (S) and 3 -(S) are described.
30 citations
TL;DR: In this paper, the synthesis of 3-C-methyl-α-d -arabinofuranosyl nucleosides from 1,2,3-tri tri-O-acetyl-5-Obenzoyl-3-C-,methyl-d-ribofuranose with a high concentration of acetic acid was described.
29 citations
TL;DR: In this article, the synthesis of 1,2-O-cyanoethylidene derivatives (CED) of alkyl glycopyranuronates with the d -Glc, d -Gal, and d -Man configurations is described by oxidation of the 3,4-di-O.acetyl-6-Otrityl-CED-hexose analogues with the Jones reagent [chromium(VI) oxide-sulfuric acid].
28 citations
27 citations
27 citations
TL;DR: 3-Deoxy-D-manno-2-octulosonic acid (KDO) 1,4-lactone was synthesized from aldehydo-Dmannose derivatives by Horner-Emmons reaction in two steps as discussed by the authors.
Abstract: 3-Deoxy-D-manno-2-octulosonic acid (KDO) 1,4-lactone was synthesized from aldehydo-D-mannose derivatives by Horner–Emmons reaction in two steps.
26 citations
26 citations
TL;DR: In this article, the authors investigated the kinetics of reduction of dodecatungstocobaltate (III) by D-fructose, D-glucose, and D-mannose in aqueous media.
Abstract: The kinetics of reduction of dodecatungstocobaltate (III) by D-fructose, D-glucose, and D-mannose in aqueous media have been investigated. A pseudo-zero-order rate was obtained with the ketose and the reaction was acid-dependent. On the contrary, pseudo-second-order rates were obtained for the aldose reactions. The reactions were catalysed by metal ions in the supporting electrolyte; the cation catalytic order K+ > Na+ Li+ observed for aldose oxidation is explained on the basis of electrostatic considerations. A mechanism for the ketose oxidation is offered based on keto–enol tautomerism; the aldose oxidations are explained in terms of a transition state formed via ion-induced dipole bridging.
TL;DR: It was found that the carboxylic acid function is necessary and the side-chain length is important for the activity and the lipophilicities of the benzene ring and the enol ether group are significant for increasing the activity.
Abstract: Various analogues of WF-3681 (1a), a novel aldose reductase inhibitor, were synthesized and examined for aldose reductase-inhibitory activity. It was found that the carboxylic acid function is necessary and the side-chain length is important for the activity. Furthermore, the lipophilicities of the benzene ring and the enol ether group are significant for increasing the activity.
TL;DR: In this paper, a Ferrier rearrangement was used to obtain the cyclohexanone from D-glucose and a convenient synthesis of crystalline pseudo-α-Dglucopyranose (15), its congeners (16), as well as their partially protected derivatives has been carried out.
Abstract: Starting from D-glucose and using the Ferrier rearrangement to obtain the cyclohexanone (1), a convenient synthesis of crystalline pseudo-α-D-glucopyranose (15), its congeners (16) and (17), as well as their partially protected derivatives has been carried out.
TL;DR: In this article, the bromation de certains derives de l'acide dihydroxy-5 exo,6exo endo-and exo-oxa-7 bicyclo [2.2.1] heptanecarboxylique-2 fournit des pseudo-sucres
TL;DR: On fait reagir ici le triphenylsilane dans des conditions radicalaires sur divers furanoses and pyranoses as mentioned in this paper, a.k.a.
Abstract: On fait reagir ici le triphenylsilane dans des conditions radicalaires sur divers furanoses et pyranoses
TL;DR: Selective pivaloylation of 2-acetamido-2-deoxy-D-glucose, its methylalpha- and beta-glycosides, and the methyl alpha- glycoside of N-acetyl- D-muramic acid under various conditions has been studied.
TL;DR: In this paper, the reaction of O-ethylidene-2,4 erythrose and -threose avec l'acetylacetate de methyle, l'uree et la thiouree, obtention principalement d'analogues de nucleosides pyrimidiques
Abstract: Reaction de O-ethylidene-2,4 erythrose et -threose avec l'acetylacetate de methyle, l'uree et la thiouree; obtention principalement d'analogues de nucleosides pyrimidiques
TL;DR: In this paper, a facile, virtually one-pot synthesis of the title compound and also some of its derivatives is based on regioselective 2-substitutions of 1,6-anhydro-β-D- mannopyranose using stannylidene activation.
Abstract: A facile, virtually one-pot synthesis of the title compound and also some of its derivatives is based on regioselective 2-substitutions of 1,6-anhydro-β-D- mannopyranose using stannylidene activation. The compounds thus prepared are useful precursors in the synthesis of glycoprotein-type oligosaccharides
TL;DR: The broad spectrum antibiotic (+)-negamycin (1) was prepared from 1,2-O-isopropylidene-d -glucose (2) in nine steps as mentioned in this paper.
TL;DR: La reaction de different aldoses and cetoses substitues substitues β-D-fructose, α-D -galactose, α -D-mannose and α-d-altrose avec le triphenylsilyl lithium, letriphenylstannyl lithium ou le triphensylplumbyl lithium fournit les derives organometalliques correspondants as mentioned in this paper.
TL;DR: Synthese des composes du titre par reaction de Wittig entre le dioxo-2,6 P,P,P-triphenyl phosphonio-3 piperidinure-3 et des aldehydes ou des aldoses as mentioned in this paper.
Abstract: Synthese des composes du titre par reaction de Wittig entre le dioxo-2,6 P,P,P-triphenyl phosphonio-3 piperidinure-3 et des aldehydes ou des aldoses
TL;DR: Sodium 2-acylamino(octanamido, dodecanamide, hexadecanamido) was synthesised by N -acylation of 2-amino-2,6-dideoxy-d -glucopyranose-6-sulphonic acid.