Synthesis and glycosidase inhibitory activity of 1-amino-3,6-anhydro-1-deoxy-D-sorbitol derivatives
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Refining the chemical structure of functionalized pyrrolidine-based inhibitors of Golgi α- mannosidase II (GMII) to optimize binding affinity provided a lead molecule that demonstrated nanomolar competitive inhibition of α-mannosidases II and an optimal fi ...
A tinglucal tributyl[4,6-O-bis(t-butyl)silylidene-3-O-tris(isopropyl)silyl]tin 7 and a triflate derived from isolevoglucosenone (1R,4R,5R)-4-benzyloxy-6,8-dioxabicyclo[3.2.1]oct-2-en-2-yl trifluoromethanesulfonate 10 undergo the carbonylative Stille conden ...
The syntheses of azaMan-beta-(1-->6)-C-Glc (4), azaGlc-beta-(1-->6)-C-Glc (5), and azaGal-beta-(1-->6)-C-Glc (6) based upon double reductive amination of acetylenic carbohydrate-derived diketones is described. The required diketones are obtained by additio ...
The importance of protein kinases in cell signaling and cell cycle control has led to detailed structural and functional studies in various eukaryotes, and hence to the synthesis of specific chemical inhibitors for managing disease. Here, the current progr ...
The maximum concentration of alpha-cyclodextrin for the enzymatic degradation of starch is limited to about 13.5 g X 1(-1). By addition of decanol, the equilibrium of the reaction system can be shifted towards an alpha-cyclodextrin yield of 50% even at hig ...
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There is an increasing interest by the flavor industry for producing natural aroma compds. through biocatalysts. L-Phenylalanine is transformed by Saccharomyces cerevisiae into 2-phenylethanol, which has a rose-like odor. Unfortunately this product inhibit ...
A (-)-conduritol F derivative was condensed with 4-ethyl-7-hydroxy-2H-1-benzopyran-2-one and converted into (+)-4-ethyl-7-[( 1'R,2'S,3'S,4'R)-2',3',4'-trihydroxycyclohexyloxy]-2H-1benzopyran-2-one ((+)-2) Enantiomer (-)-2 was obtained from a (+)-conduritol ...
Preselected cyanobacterial strains (available from culture collections and our own isolates), belonging primarily to the heterocystous cluster, were screened for inhibitors against butyrylcholinesterase. About one-half of the extracts exhibited inhibitory ...
The transfer of cyclodextrins to unusual acceptors in order to synthesize functionalized linear dextrins with the cyclodextrin glycosyltransferase from Klebsiella pneumoniae was investigated. This enzyme catalyzed the transfer of a-cyclodextrin only. The a ...
Disaccharide and oligosaccharide mimics are potentially more selective glycosidases inhibitors than simple monosaccharide mimics. They represent also more selective ligands for lectins and oligosaccharide receptors and can become immunostimulating agents. ...
