58846-77-8Relevant articles and documents
Antimicrobial and cytotoxic activity of (thio)alkyl hexopyranosides, nonionic glycolipid mimetics
Bogdanová, Kate?ina,Combet, Sophie,D?ubák, Petr,Gurská, Soňa,Hajdúch, Marian,Kanjaková, Nina,Klunda, Tomá?,Kolá?, Milan,Poláková, Monika,Uhríková, Daniela
, (2020/01/30)
A series of 19 synthetic alkyl and thioalkyl glycosides derived from D-mannose, D-glucose and D-galactose and having C10–C16 aglycone were investigated for cytotoxic activity against 7 human cancer and 2 non-tumor cell lines as well as for antimicrobial potential on 12 bacterial and yeast strains. The most potent compounds were found to be tetradecyl and hexadecyl β-D-galactopyranosides (18, 19), which showed the best cytotoxicity and therapeutic index against CCRF-CEM cancer cell line. Similar cytotoxic activity showed hexadecyl α-D-mannopyranoside (5) but it also inhibited non-tumor cell lines. Because these two galactosides (18, 19) were inactive against all tested bacteria and yeast strains, they could be a target-specific for eukaryotic cells. On the other hand, β-D-glucopyranosides with tetradecyl (11) and hexadecyl (12) aglycone inhibited only Gram-positive bacterial strain Enterococcus faecalis. The studied glycosides induce changes in the lipid bilayer thickness and lateral phase separation at high concentration, as derived from SAXS experiments on POPC model membranes. In general, glucosides and galactosides exhibit more specific properties. Those with longer aglycone show high cytotoxicity and therefore, they are more promising candidates for cancer cell line targeted inhibition.
Micellar effect on the direct Fischer synthesis of alkyl glucosides
Nowicki,Woch,Mo?cipan,Nowakowska-Bogdan
, p. 13 - 18 (2017/04/13)
This manuscript presents results from the investigation on the synthesis of alkyl glucosides by the novel, very efficient and environmentally friendly protocol of the Fischer-type synthesis from unprotected glucose and aliphatic alcohols. The use of the dual functionality catalysts (surfactant?+?acid catalyst) and micellar reaction system are the main novelty of described method. It has been found, that in developed method of synthesis the reaction of unprotected glucose with aliphatic alcohols carried out with significantly different route, than the normal (classical) route and leads to alkyl glucopyranoside derivatives with high yields. In progress analyses by DLS, HPLC and GC/MS confirm the general postulated pathway of developed method.
Chemoenzymatic synthesis of β-D-glucosides using cellobiose phosphorylase from Clostridium thermocellum
De Winter, Karel,Van Renterghem, Lisa,Wuyts, Kathleen,Pelantová, Helena,K?en, Vladimír,Soetaert, Wim,Desmet, Tom
, p. 1961 - 1969 (2015/06/02)
Abstract Over the past decade, disaccharide phosphorylases have been successfully applied for the synthesis of numerous α-glucosides. In contrast, much less research has been done with respect to the production of β-glucosides. Although cellobiose phosphorylase was already successfully used for the synthesis of various disaccharides and branched trisaccharides, its glycosylation potential towards small organic compounds has not been explored to date. Unfortunately, disaccharide phosphorylases typically have a very low affinity for non-carbohydrate acceptors, which urges the addition of solvents. The ionic liquid AMMOENGTM 101 and ethyl acetate were identified as the most promising solvents, allowing the synthesis of various β-glucosides. Next to hexyl, heptyl, octyl, nonyl, decyl and undecyl β-D-glucopyranosides, also the formation of vanillyl 4-O-β-D-glucopyranoside, 2-phenylethyl β-D-glucopyranoside, β-citronellyl β-D-glucopyranoside and 1-O-β-D-glucopyranosyl hydroquinone was confirmed by nuclear magnetic resonance spectroscopy and mass spectrometry. Moreover, the stability of cellobiose phosphorylase could be drastically improved by creating cross-linked enzyme aggregates, while the efficiency of the biocatalyst for the synthesis of octyl β-D-glucopyranoside was doubled by imprinting with octanol. The usefulness of the latter system was illustrated by performing three consecutive batch conversions with octanol imprinted cross-linked enzyme aggregates, yielding roughly 2 g of octyl β-D-glucopyranoside.
