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author = "Wittmann, Valentin"
<< < 2 3 4 5 6 > >>

Found 59 documents, displaying page 3 of 6

Copper(II)-mediated activation of sugar oxazolines : mild and efficient synthesis of beta-glycosides of N-Acetylglucosamine

Author(s) : Wittmann, Valentin , Lennartz, Dirk
Description : 2-Methyl-(3,4,6-tri-O-acetyl-1,2-dideoxy-α-D-glucopyrano)-[2,1-d]-2-oxazoline (5) was reacted with glycosyl acceptors bearing primary (6, 8, 10, 20) or secondary hydroxy groups (12, 14, 16, 18) in the presence of anhydrous cupric bromide or cupric chloride at elevated temperature to provide 2-acetam...
Repository : Univ. Konstanz: Konstanzer Online-Publikations-System (KOPS)
Language(s) : English

Kombinatorische Festphasensynthese von multivalenten cyclischen Neoglycopeptiden

Author(s) : Wittmann, Valentin , Seeberger, Sonja
Description :
Repository : Univ. Konstanz: Konstanzer Online-Publikations-System (KOPS)
Language(s) : German

Combinatorial Solid-Phase Synthesis of Multivalent Cyclic Neoglycopeptides

Author(s) : Wittmann, Valentin , Seeberger, Sonja
Description :
Repository : Univ. Konstanz: Konstanzer Online-Publikations-System (KOPS)
Language(s) : English

Stereoselektive Synthese von C-Glycosiden mit einem Glycosyl-Dianion

Author(s) : Wittmann, Valentin , Kessler, Horst
Description :
Repository : Univ. Konstanz: Konstanzer Online-Publikations-System (KOPS)
Language(s) : German

Stereoselective synthesis of C-glycosides with a glycosyl dianion

Author(s) : Wittmann, Valentin , Kessler, Horst
Description :
Repository : Univ. Konstanz: Konstanzer Online-Publikations-System (KOPS)
Language(s) : English

Orthogonally Protected Sugar Diamino Acids as Building Blocks for Linear and Branched Oligosaccharide Mimetics

Author(s) : Sicherl, Frank , Wittmann, Valentin
Description :
Repository : Univ. Konstanz: Konstanzer Online-Publikations-System (KOPS)
Language(s) : English

Cyclic Peptides as Scaffolds for Multivalent Presentation of Carbohydrates : a Combinatorial Approach

Author(s) : Seeberger, Sonja , Wittmann, Valentin
Description : Carbohydrate lectin interactions mediate a large variety of intercellular recognition events. Since the interactions of individual saccharide groups are usually of low affinity and broad specificity, subsite and subunit multivalency is often employed by nature in order to enhance the attractive bind...
Repository : Univ. Konstanz: Konstanzer Online-Publikations-System (KOPS)
Language(s) : English

Spatial Screening of Lectin Ligands : Cyclic Peptides as Scaffolds for Multivalent Presentation of Carbohydrates

Author(s) : Wittmann, Valentin , Seeberger, Sonja
Description : Carbohydrate-lectin interactions are the basis of numerous biologically important recognition processes. Examples include the initiation of the inflammatory response, bacterial and viral pathogenesis, fertilization, and even protein folding. High-affinity lectin ligands are of considerable medicinal...
Repository : Univ. Konstanz: Konstanzer Online-Publikations-System (KOPS)
Language(s) : English

Orthogonally Protected Sugar Diamino Acids as Building Blocks for Oligosaccharide Mimetics

Author(s) : Sicherl, Frank , Wittmann, Valentin
Description : Sugar amino acids (SAAs) have received considerable interest as building blocks for oligosaccharide and peptide mimetics and as pharmacophor-presenting scaffolds. Used as monomers with a rigid pyran ring, functional pharmacophoric groups attached to the hydroxy, amino, and carboxyl groups can be pre...
Repository : Univ. Konstanz: Konstanzer Online-Publikations-System (KOPS)
Language(s) : English

Unexpected formation of complex bridged tetrazoles via intramolecular 1,3-dipolar cycloaddition of 1,2-O-cyanoalkylidene derivates of 3-azido-3-deoxy-D-allose

Author(s) : Worch, Marco , Wittmann, Valentin
Description : An unexpected and interesting intramolecular side reaction occurred during the attempted synthesis of glycosyl cyanides upon treatment of 1-O-acetyl-3-azido-3-deoxyallose derivatives with TMSCN and different Lewis acids. Exo-1,2-O-cyanoalkylidene derivatives formed by neighboring group participation...
Repository : Univ. Konstanz: Konstanzer Online-Publikations-System (KOPS)
Language(s) : English
<< < 2 3 4 5 6 > >>

Found 59 documents, displaying page 3 of 6