103833-57-4Relevant academic research and scientific papers
C-Glycosyl amino acids through hydroboration-cross-coupling of exo-glycals and their application in automated solid-phase synthesis
Koch, Stefan,Schollmeyer, Dieter,L?we, Holger,Kunz, Horst
supporting information, p. 7020 - 7041 (2013/07/05)
O-Glycosylation is one of the most important post-translational modifications of proteins. The attachment of carbohydrates to the peptide backbone influences the conformation as well as the solubility of the conjugates and can even be essential for binding to specific ligands in cell-cell interactions or for active transport over membranes. This makes glycopeptides an interesting class of compounds for medical applications. To enhance the long-term availability of these molecules in vivo, the stabilization of the glycosidic bond between the amino acid residue and the carbohydrate is of interest. The described modular approach affords β-linked C-glycosyl amino acids by a sequence of Petasis olefination of glyconolactones, stereoselective hydroboration and a mild B-alkyl-Suzuki coupling reaction. The coupling products were transformed to C-glycosyl amino acid building-blocks suitable for solid-phase synthesis and successfully incorporated into a partial sequence of the tumor-associated MUC1-glycopeptide. The resulting C-glycopeptides are candidates for the development of long-term stable mimics of O-glycopeptide vaccines. Copyright
COMPOUND RETAINED IN TUMOR
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Page/Page column 14, (2011/12/03)
A novel compound which specifically resides in a tumor, a method for allowing it to reside in a tumor, and a method for detecting, diagnosing, and treating tumor with use thereof are provided. The present invention relates to a compound represented by chemical formula (I) wherein R is an anionic group binding to hydrogen, R1 is OH, OCOH, OCO(CH2)hCH3, or an acting group, h being an integer of 0 or more, R2 is H, OH, OCOH, OCO(CH2)iCH3, or an acting group, i being an integer of 0 or more, R3 is OH, SO3H, or an acting group, R4 is OH, SO3H, or an acting group, and R5 is OH, SO3H, or an acting group, at least one of R1, R2, R3, R4, and R5 containing an acting group, or pharmaceutically acceptable salts thereof.
Synthesis of 1-deoxyhept-2-ulosyl-glycono-1,5-lactone utilizing α-selective O-glycosidation of 2,6-anhydro-1-deoxy-d-hept-1-enitols
Namme, Rie,Mitsugi, Takashi,Takahashi, Hideyo,Shiro, Moto,Ikegami, Shiro
, p. 9183 - 9192 (2007/10/03)
A series of 1-deoxy-heptulo-2-pyranosyl-glycono-1,5-lactones were synthesized utilizing completely α-selective O-glycosidation of heptenitols. Anomeric configuration of the products was confirmed by 3JC,H coupling measurement and X-ray crystal structural analysis. The benzyl-protected ketosyl saccharides were partly unstable, and glycosidic linkage was prone to cleave under the usual debenzylation conditions. To prevent this, we surveyed various additives for the Pd-catalyzed hydrogenation reaction and found that basic alumina was the most effective.
Synthesis of mono- and disaccharide analogs of moenomycin and lipid II for inhibition of transglycosylase activity of penicillin-binding protein 1b
Garneau, Sylvie,Qiao, Lei,Chen, Lan,Walker, Suzanne,Vederas, John C.
, p. 6473 - 6494 (2007/10/03)
Three types of mono- and disaccharides as well as some chaetomellic acid A analogs were synthesized and evaluated for inhibitory activity against the E. coli transglycosylase PBP1b. Three types of mono- and disaccharides 3a,b, 4a-c, 5, and some chaetomell
Stereochemical Control in Hex-5-enyl Radical Cyclizations: From Carbohydrates to Carbocycles. 3
RajanBabu, T. V.,Fukunaga, Tadamichi,Reddy, G. S.
, p. 1759 - 1769 (2007/10/02)
The hex-5-enyl radical cyclization reaction was applied to prepare highly oxygenated cyclopentanoids from aldopyranose sugars.The Wittig reaction of the sugars readily provides hex-5-en-1-ols which were converted to hex-5-enyl radicals via one of the vari
SYNTHESIS OF HEPARIN FRAGMENTS. A CHEMICAL SYNTHESIS OF THE PENTASACCHARIDE O-(2-DEOXY-2-SULFAMIDO-6-O-SULFO-α-D-GLUCOPYRANOSYL)-(1->4)-O-(β-D-GLUCOPYRANOSYLURONIC ACID)-(1->4)-O-(2-DEOXY-2-SULFAMIDO-3,6-DI-O-SULFO-α-D-GLUCOPYRANOSYL)-(1->4)-O-(2-O-SULFO-
Petitou, Maurice,Duchaussoy, Philippe,Lederman, Isidore,Choay, Jean,Sinay, Pierre,et al.
, p. 221 - 236 (2007/10/02)
Known allyl 4,6-O-benzylidene-α-D-glucopyranoside was first converted into methyl (prop-1-enyl 2,3-di-O-benzyl-4-O-chloroacetyl-α-D-glucopyranosid)-uronate.Acid hydrolysis, followed by treatment with (bromomethylene)dimethylammonium bromide, gave methyl (
