1998
DOI: 10.1016/s0040-4039(98)01664-5
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Intramolecular glycoside bond formation — A rigid spacer concept for the diastereoselective linkage between glycosyl donor and acceptor

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Cited by 29 publications
(15 citation statements)
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“…Glycosyl transfer within the active site of an enzyme can be regarded as an intramolecular process in which the glycosyl donor and the acceptor are held in close proximity to enforce regio-and stereoselective glycoside-bond formation. [290,293,299] To mimic this process in vitro, a system was designed in which the acceptor is attached to the donor through a spacer connected to nonreacting centers (Figure 4 c). Particularly rigid spacers, which force the reacting centers into close proximity, should result in efficient glycoside-bond formation.…”
Section: Linkage Of the Glycosyl Donor And Acceptor Through A Functiomentioning
confidence: 99%
“…Glycosyl transfer within the active site of an enzyme can be regarded as an intramolecular process in which the glycosyl donor and the acceptor are held in close proximity to enforce regio-and stereoselective glycoside-bond formation. [290,293,299] To mimic this process in vitro, a system was designed in which the acceptor is attached to the donor through a spacer connected to nonreacting centers (Figure 4 c). Particularly rigid spacers, which force the reacting centers into close proximity, should result in efficient glycoside-bond formation.…”
Section: Linkage Of the Glycosyl Donor And Acceptor Through A Functiomentioning
confidence: 99%
“…Der Glycosyltransfer innerhalb des aktiven Teils eines Enzyms kann als ein intramolekularer Prozess angesehen werden, bei dem Glycosyldonor und ‐akzeptor so in räumliche Nähe zueinander gebracht werden, dass die regio‐ und stereoselektive Bildung der glycosidischen Bindungen erzwungen wird 290. 293, 299 Um einen ähnlichen Prozess in vitro nachzuahmen, wurde die Verknüpfung des Akzeptors mit dem Donor über einen mit nichtreagierenden Zentren verbundenen Spacer konzipiert (Abbildung 4 c). Besonders starre Spacer, die die Nähe der Reaktionszentren erzwingen, sollten zur effizienten Bildung von glycosidischen Bindungen führen 290.…”
Section: Intramolekulare Glycosidierungunclassified
“…a, a'-dibromo-rn-xylene has recently been used to produce the tethered compounds 69 and 70 which, upon activation with NIS/TMSOTf, resulted in the macrocyclic derivatives 71 and 72 containing 14-or 15-membered rings respectively (Scheme 22). In both instances p( 1-4)-linkages were formed exclusively [41].…”
Section: Reactions In Which the Tether Does Not Participate In The Rementioning
confidence: 88%