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Statements

Subject Item
n2:RIV%2F61388971%3A_____%2F10%3A00354023%21RIV11-MSM-61388971
rdf:type
n11:Vysledek skos:Concept
dcterms:description
Enzymatic transglycosylation catalyzed by glycosidases is a respected method in carbohydrate synthesis. The spectrum of acceptors is practically infinite, contrary to glycosyl donors, which are usually nitrophenyl glycosides. Their major advantage is good reactivity, however, their low water solubility causes lower transglycosylation yields since high concentrations of substrates are needed to promote transglycosylation at the expense of donor hydrolysis. This is especially the case of modified glycoside donors where some OH groups are substituted with more lipophilic substituents. The solubility problems are generally incurred by hydrophobic leaving groups. Furthermore, commercial nitrophenyl glycosides are expensive and the yields of their syntheses may be unsatisfactory. Therefore, alternative glycosyl donors are emerging, such as 3-nitro- and 5-nitro-2-pyridyl glycosides, vinyl glycosides and glycosyl fluorides, which exhibit many properties common to glycosyl azides Enzymatic transglycosylation catalyzed by glycosidases is a respected method in carbohydrate synthesis. The spectrum of acceptors is practically infinite, contrary to glycosyl donors, which are usually nitrophenyl glycosides. Their major advantage is good reactivity, however, their low water solubility causes lower transglycosylation yields since high concentrations of substrates are needed to promote transglycosylation at the expense of donor hydrolysis. This is especially the case of modified glycoside donors where some OH groups are substituted with more lipophilic substituents. The solubility problems are generally incurred by hydrophobic leaving groups. Furthermore, commercial nitrophenyl glycosides are expensive and the yields of their syntheses may be unsatisfactory. Therefore, alternative glycosyl donors are emerging, such as 3-nitro- and 5-nitro-2-pyridyl glycosides, vinyl glycosides and glycosyl fluorides, which exhibit many properties common to glycosyl azides
dcterms:title
Azido leaving group in enzymatic synthesis-small and efficient Azido leaving group in enzymatic synthesis-small and efficient
skos:prefLabel
Azido leaving group in enzymatic synthesis-small and efficient Azido leaving group in enzymatic synthesis-small and efficient
skos:notation
RIV/61388971:_____/10:00354023!RIV11-MSM-61388971
n4:aktivita
n10:P
n4:aktivity
P(OC08049)
n4:dodaniDat
n6:2011
n4:domaciTvurceVysledku
n8:5894190 n8:3895831
n4:druhVysledku
n17:C
n4:duvernostUdaju
n15:S
n4:entitaPredkladatele
n9:predkladatel
n4:idSjednocenehoVysledku
248320
n4:idVysledku
RIV/61388971:_____/10:00354023
n4:jazykVysledku
n16:eng
n4:klicovaSlova
carbohydrate synthesis; glycoside donors; glycosyl azides
n4:klicoveSlovo
n5:glycoside%20donors n5:glycosyl%20azides n5:carbohydrate%20synthesis
n4:kontrolniKodProRIV
[D6ACA7C1FD50]
n4:mistoVydani
Thomas Graham House, Science Park, Milton Road
n4:nazevZdroje
Carbohydrate Chemistry. Chemical and Biological Approaches
n4:obor
n14:CC
n4:pocetDomacichTvurcuVysledku
2
n4:pocetStranKnihy
193
n4:pocetTvurcuVysledku
2
n4:projekt
n19:OC08049
n4:rokUplatneniVysledku
n6:2010
n4:tvurceVysledku
Bojarová, Pavla Křen, Vladimír
s:numberOfPages
6
n18:hasPublisher
The Royal Society of Chemistry
n12:isbn
9781847550446