Results 61 to 70 of about 54,595 (236)

Comparison of glycosyl donors: a supramer approach

open access: yesBeilstein Journal of Organic Chemistry
The development of new methods for chemical glycosylation commonly includes comparison of various glycosyl donors. An attempted comparison of chemical properties of two sialic acid-based thioglycoside glycosyl donors, differing only in the substituent at
Anna V. Orlova   +5 more
doaj   +1 more source

Synthesis of Glycosyl-1-phosphates via Dehydrative Glycosylation [PDF]

open access: yesOrganic Letters, 2000
[reaction: see text] Direct synthetic access to glycosyl-1-phosphates is accomplished with the dehydrative coupling of carbohydrate hemiacetals and dialkyl phosphates, employing dibenzothiophene-5-oxide and triflic anhydride. The procedure offers a new and versatile method for efficient preparation of a host of glycosyl-1-phosphates of variable ...
B A, Garcia, D Y, Gin
openaire   +3 more sources

Carbonylative Suzuki–Miyaura Coupling of 1‐Iodoglycals Mediated by the N‐Heterocyclic Carbene Catalyst PEPPSI: Preparation of C‐Acyl Glycosides

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
A multicomponent carbonylative Suzuki–Miyaura reaction was developed for the synthesis of C‐acyl glycosides. Using Pyridine‐Enhanced Precatalyst Preparation, Stabilization, and Initiation (PEPPSI‐IPr) catalysis and Mo(CO)6 as a solid CO source, the reaction enables selective carbonylation of three components in synthetically useful yields, providing a ...
Eurípedes de Aguiar   +5 more
wiley   +1 more source

Synthetic Route to Glycosyl β-1C-(phosphino)-phosphonates as Unprecedented Stable Glycosyl Diphosphate Analogs and Their Preliminary Biological Evaluation

open access: yesMolecules, 2020
The synthesis of glycosyl-β-1C-(phosphino)-phosphonates is a challenge since it has not yet been described. In this paper, we report an innovative synthetic method for their preparation from Glc-, Man-, and GlcNAc- lactone derivatives.
Michaël Bosco   +4 more
doaj   +1 more source

Glycosylated Metal Phthalocyanines [PDF]

open access: yesMolecules, 2015
In the first part; the syntheses of mono-; di-; and tetra-glycosylated phthalonitriles is described; which are the most used starting materials for the preparation of the corresponding glycosylated metal (mostly zinc) phthalocyanines. In the second section; the preparation of symmetric and unsymmetric mono-; tetra-; and octa- glycosylated zinc ...
openaire   +3 more sources

Engineered Probiotics: The Next‐Generation Therapeutics to Combat Antibiotic‐Resistant Bacterial Infections

open access: yesFood Frontiers, EarlyView.
Engineered probiotics secretes fusion proteins which potentially neutralized the toxins secreted by other microbial communities. ABSTRACT On a global scale, the escalating burden of infectious diseases, predominantly attributed to bacterial pathogens, especially drug‐resistant strains, has progressed into a critical concern for clinical management and ...
Indu Singh   +11 more
wiley   +1 more source

Convenient synthesis of the pentasaccharide repeating unit corresponding to the cell wall O-antigen of Escherichia albertii O4

open access: yesBeilstein Journal of Organic Chemistry, 2020
A straightforward sequential synthetic strategy has been developed for the synthesis of a pentasaccharide repeating unit corresponding to the cell wall O-antigen of the Escherichia albertii O4 strain in very good yield with the desired configuration at ...
Tapasi Manna   +2 more
doaj   +1 more source

Preliminary investigation on pasting properties, solvent retention capacity and antioxidant properties of mature green breadfruit (Artocarpus altilis, Moraceae) flour modified using plant food waste Hibiscus sabdariffa bioactive components

open access: yesFood Biomacromolecules, EarlyView.
Abstract Effects of bioactive components of white variety of Hibiscus sabdariffa (WHS) at 4 regimen and 2 regimen samples without WHS as reference carried out at room temperature for 14 days, with periodical stirring on pasting, antioxidant and solvent retention capacity properties of mature green breadfruit flour were studied.
Bode Daramola
wiley   +1 more source

Photocaged and Water‐Soluble Glucose Functionalization for Spatiotemporal Acidification Pathways

open access: yesHelvetica Chimica Acta, EarlyView.
Light‐controlled glucose release from a water‐soluble coumarin photocage enables spatiotemporal acid generation in enzyme‐driven chemical reaction networks. ABSTRACT The spatiotemporal control of complex molecular systems, such as chemical reaction networks (CRNs), requires reagents and reactive species that can be activated both efficiently and ...
Nikolai Hempel   +2 more
wiley   +1 more source

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