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http://hdl.handle.net/10261/9291
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Campo DC | Valor | Lengua/Idioma |
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dc.contributor.author | Calveras, Jordi | - |
dc.contributor.author | Casas, Josefina | - |
dc.contributor.author | Parella, Teodor | - |
dc.contributor.author | Joglar Tamargo, Jesús | - |
dc.contributor.author | Clapés Saborit, Pere | - |
dc.date.accessioned | 2008-12-19T08:45:21Z | - |
dc.date.available | 2008-12-19T08:45:21Z | - |
dc.date.issued | 2007-07-17 | - |
dc.identifier.citation | Advanced Synthesis & Catalysis 349(10) :1661-1666 (2007) | en_US |
dc.identifier.issn | 1615-4169 | - |
dc.identifier.uri | http://hdl.handle.net/10261/9291 | - |
dc.description | 6 páginas,1 figura, 2 esquemas, 2 tablas. | en_US |
dc.description.abstract | A novel straightforward chemoenzymatic procedure for the synthesis of hyacinthacine stereoisomers based on the aldol addition of dihydroxyacetone phosphate (DHAP) to N-Cbz-prolinal under catalysis by l-rhamnulose 1-phosphate aldolase from E. coli is presented. The synthesis is complemented by a simple and effective purification protocol consisting of ion-exchange chromatography on CM-sepharose. As examples, ( )-hyacinthacine A2 [the enantiomer of (+)-hyacinthacine A2], 7-deoxy- 2-epialexine (the enantiomer of 3-epihyacinthacine A2), ent-7-deoxyalexine (the enantiomer of 7-deoxyalexine) and 2-epihyacinthacine A2 were synthesized by these procedures and characterized for the first time. These new isomers were assayed as inhibitors of glycosidases. As a result, ( )-hyacinthacine A2 demonstrated to be a good inhibitor of a-d-glucosidase from rice whereas the natural enantiomer, hyacinthacine A2, was not. Moreover, a new family of inhibitors of a-l-rhamnosidase was uncovered. | en_US |
dc.description.sponsorship | Financial support from the Spanish MEC (CTQ2005–25182- E, CTQ2006–01080 and CTQ2006–01345/BQU), La Marat5 de TV3 foundation (Ref: 050931) and Generalitat de Catalunya DURSI 2005-SGR-00698 is acknowledged. J. Calveras acknowledges the CSIC UAs pre-doctoral scholarship programs. | en_US |
dc.format.extent | 162 bytes | - |
dc.format.mimetype | application/msword | - |
dc.language.iso | eng | en_US |
dc.publisher | Wiley-VCH | en_US |
dc.rights | closedAccess | en_US |
dc.subject | Aldol reaction | en_US |
dc.subject | Aldolases | en_US |
dc.subject | Amino aldehydes | en_US |
dc.subject | Hyacinthacines | en_US |
dc.subject | Polyhydroxylated pyrrolizidine alkaloids | en_US |
dc.title | Chemoenzymatic Synthesis and Inhibitory Activities of Hyacinthacines A1 and A2 Stereoisomers. | en_US |
dc.type | artículo | en_US |
dc.identifier.doi | 10.1002/adsc.200700168 | - |
dc.description.peerreviewed | Peer reviewed | en_US |
dc.relation.publisherversion | http://dx.doi.org/10.1002/adsc.200700168 | en_US |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.languageiso639-1 | en | - |
item.fulltext | No Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | none | - |
item.openairetype | artículo | - |
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