Results 211 to 220 of about 54,595 (236)

Glycosylation using glycosyl phosphite as a glycosyl donor

Tetrahedron, 1994
Abstract Glycosylation using glycosyl phosphites as glycosyl donors in the presence of a Lewis acid such as ZnCl2 or ZnCl2-AgClO4 has afforded the glycosides including sialoglycosides in good yields.
Yutaka Watanabe, Chikara Nakamoto, Takashi Yamamoto, Shoichiro Ozaki   +3 more
openaire   +1 more source

Stereoselective glycosylation using oxathiane glycosyl donors

Chemical Communications, 2009
A bicyclic glycosyl donor is activated as an arylsulfonium ion and used to synthesise alpha-glycosides with high stereoselectivity.
Fascione, Martin A., Adshead, Sophie J., Stalford, Susanne A., Kilner, Colin A., Leach, Andrew G., Turnbull, W. Bruce   +5 more
openaire   +2 more sources

Collagen glycosylation

Current Opinion in Structural Biology, 2019
Despite the ubiquity of collagens in the animal kingdom, little is known about the biology of the disaccharide Glc(α1-2)Gal(β1-O) bound to hydroxylysine across collagens from sponges to mammals. The extent of collagen glycosylation varies by the types of collagen, with basement membrane collagen type IV being more glycosylated than fibrillar collagens.
openaire   +2 more sources

Artificial Glycosyl Phosphorylases

Chemistry – A European Journal, 2005
Abstractα‐ and β‐Cyclodextrin 6A,6D‐diacids (1 and 2), β‐cyclodextrin‐6‐monoacid (14), β‐cyclodextrin 6A,6D‐di‐O‐sulfate (16) and β‐cyclodextrin‐6‐heptasulfate (19) were synthesised. Acids 1, 2 and 14 were made from perbenzylated α‐ or β‐cyclodextrin, by diisobutylaluminum hydride (DIBAL)‐promoted debenzylation, oxidation and deprotection.
Rousseau, C., Nordstrøm, L.U., Caballero, F.O., Christensen, B., Pedersen, T.E., Bols, M.   +5 more
openaire   +4 more sources

Glycosylation of alcohols using glycosyl boranophosphates as glycosyl donors

Tetrahedron Letters, 2013
Abstract A novel glycosylation that uses glycosyl boranophosphate triesters as glycosyl donors and trityl cation (Tr+) as an activator was developed. Two types of reactions were studied: (1) the boranophosphate triester was activated with TrNTf2 to react with an alcohol and (2) O-trityl ethers worked as both glycosyl acceptors and Tr+ sources.
Shiro Tatsumi, Fumiko Matsumura, Natsuhisa Oka, Takeshi Wada   +3 more
openaire   +1 more source

N-Glycosyl Amides as Glycosyl Donors in Stereoselective Glycosylation Reactions

Synthesis, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Norbert Pleuss, Horst Kunz
openaire   +1 more source

Glycosyl hydrolase catalyzed glycosylation in unconventional media

Applied Microbiology and Biotechnology, 2020
The reversible hydrolytic property of glycosyl hydrolases (GHs) as well as their acceptance of aglycones other than water has provided the abilities of GHs in synthesizing glycosides. Together with desirable physiochemical properties of glycosides and their high commercial values, research interests have been aroused to investigate the synthetic other ...
Hanchi Chen, Xiao Jin, Linjiang Zhu, Yuele Lu, Zhi Ma, Shijie Liu, Xiaolong Chen   +6 more
openaire   +2 more sources

Aromatic O-glycosylation

Carbohydrate Research, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Mårten, Jacobsson, Jesper, Malmberg, Ulf, Ellervik   +2 more
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Highly α‐Selective Glycosylation with Glycosyl Acetate via Glycosyl Phosphonium Iodide.

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Yohei Kobashi, Teruaki Mukaiyama
openaire   +1 more source

Glycosylation with N-Troc-protected glycosyl donors

Carbohydrate Research, 1996
N-Troc-protected (Troc = 2,2,2-trichloroethoxycarbonyl) glucosamine and galactosamine glycosyl donors (1-O-acetyl sugar, bromo sugar, and thioglycoside) were compared with the corresponding N-Phth-protected derivatives in glycosylations of 2-(trimethylsilyl)ethanol, 2-bromoethanol, methyl 3-mercaptopropionate, N-Fmoc-protected serine, and 2 ...
U, Ellervik, G, Magnusson
openaire   +2 more sources