Results 261 to 270 of about 15,326,315 (274)

One-pot synthesis of D-glucosamine and chitobiosyl building blocks catalyzed by triflic acid on molecular sieves.

Chemical Communications, 2014
Combining triflic acid-catalyzed acetalation, benzylation, reductive ring opening of benzylidene acetal and glycosylation in one-pot transformations leads to a wide range of d-glucosamine building blocks for assembling oligomers.
G. Despras, D. Urban, B. Vauzeilles, J. Beau   +3 more
semanticscholar   +1 more source

D-Glucosamine as a green ligand for copper catalyzed synthesis of aryl sulfones from aryl halides and sodium sulfinates

, 2014
D-Glucosamine is reported for the first time as a green ligand for copper catalyzed coupling of aryl halides and sodium sulfinates, which provides a simple and extremely efficient new route to unsymmetrical diaryl sulfones.
Ming‐Ming Yang, Hongyun Shen, Yuanyuan Li, Chao Shen, Pengfei Zhang   +4 more
semanticscholar   +1 more source

Trimodal Control of Ion-Transport Activity on Cyclo-oligo-(1→6)-β-D-glucosamine-Based Artificial Ion-Transport Systems.

Chemistry, 2015
Cyclo-oligo-(1→6)-β-D-glucosamines functionalized with hydrophobic tails are reported as a new class of transmembrane ion-transport system. These macrocycles with hydrophilic cavities were introduced as an alternative to cyclodextrins, which are ...
Arundhati Roy, T. Saha, M. Gening, D. V. Titov, A. Gerbst, Y. Tsvetkov, N. Nifantiev, Pinaki Talukdar   +7 more
semanticscholar   +1 more source

Cyclo-oligo-(1 → 6)-β-D-glucosamine based artificial channels for tunable transmembrane ion transport.

Chemical Communications, 2014
Unimolecular ion channels were designed by functionalization of a new type of cyclic oligosaccharides, cyclo-oligo-(1 → 6)-β-d-glucosamines, with pentabutylene glycol chains. Their ion transporting activity was tuned by varying oligomericity.
T. Saha, Arundhati Roy, M. Gening, D. V. Titov, A. Gerbst, Y. Tsvetkov, N. Nifantiev, Pinaki Talukdar   +7 more
semanticscholar   +1 more source

Synthesis of oseltamivir and tamiphosphor from N-acetyl-D-glucosamine.

Organic and biomolecular chemistry, 2013
Using N-acetyl-D-glucosamine as a starting material, the anti-influenza drugs oseltamivir and tamiphosphor were synthesized via a pivotal intermediate of aldehyde 8.
Chih-An Chen, Jim-Min Fang
semanticscholar   +1 more source

Optical turn-on sensor based on graphene oxide for selective detection of D-glucosamine.

Analytical Chemistry, 2012
By incorporating the well-known fluorophore 8-aminoquinoline into graphene oxide, we have successfully prepared a turn-on fluorescent sensor capable of specific detection of D-glucosamine with a high selectivity and sensitivity. This methodology provides
Rumei Cheng, Yong Liu, Shengju Ou, Yaqiong Pan, Shu Zhang, Hao Chen, L. Dai, Jia Qu   +7 more
semanticscholar   +1 more source

Non-catalytic synthesis of Chromogen I and III from N-acetyl-D-glucosamine in high-temperature water

, 2013
Non-catalytic synthesis of 2-acetamido-2,3-dideoxy-D-erythro-hex-2-enofuranose (Chromogen I) and 3-acetamido-5-(1′,2′-dihydroxyethyl)furan (Chromogen III) from N-acetyl-D-glucosamine (GlcNAc) was achieved, with the highest yields of 23.0% and 23.1 ...
M. Osada, K. Kikuta, Kohei Yoshida, K. Totani, M. Ogata, T. Usui   +5 more
semanticscholar   +1 more source

Novel phosphoramidate prodrugs of N-acetyl-(D)-glucosamine with antidegenerative activity on bovine and human cartilage explants.

Journal of Medicinal Chemistry, 2012
(D)-Glucosamine and other nutritional supplements have emerged as safe alternative therapies for osteoarthritis (OA), a chronic and degenerative articular joint disease.
M. Serpi, Rita Bibbo, S. Rat, H. Roberts, Ciaran Hughes, B. Caterson, M. Alcaraz, A. Gibert, C. A. Verson, C. Mcguigan*   +9 more
semanticscholar   +1 more source

α-Glycosylation by D-glucosamine-derived donors: synthesis of heparosan and heparin analogues that interact with mycobacterial heparin-binding hemagglutinin.

Journal of the American Chemical Society, 2012
Numerous biomolecules possess α-D-glucosamine as structural component. However, chemical glycosylations aimed at this backbone are usually not easily attained without generating the unwanted β-isomer.
M. M. Zulueta, Shu‐Yi Lin, Ya-Ting Lin, Ching-Jui Huang, Chun-Chih Wang, C. Ku, Zhonghao Shi, C. Chyan, D. Irene, Liang-Hin Lim, Tsung-I Tsai, Yu-peng Hu, Susan D. Arco, Chi‐Huey Wong, S. Hung   +14 more
semanticscholar   +1 more source

Anti-tumor properties of orally administered glucosamine and N-acetyl-D-glucosamine oligomers in a mouse model.

Carbohydrate Polymers, 2014
Sachie Masuda, K. Azuma, S. Kurozumi, Masatoshi Kiyose, T. Osaki, T. Tsuka, Norihiko Itoh, T. Imagawa, S. Minami, Kimihiko Sato, Y. Okamoto   +10 more
semanticscholar   +1 more source