Logo Kérwá
 

Diterpenos y otros constituyentes de Croton hirtus (Euphorbiaceae)

Simple item page
dc.creatorFuentes, J. C.
dc.creatorJakupovic, Jasmin
dc.creatorMurillo Masís, Renato
dc.date2014-06-19
dc.date.accessioned2016-05-03T15:32:06Z
dc.date.available2016-05-03T15:32:06Z
dc.descriptionThe roots of Croton hirtus (Euphorbiaceae) collected in Paraiso, Cartago (Costa Rica) afforded, in addition to the few known metabolites, 20 new compounds: the bis-nor dolabradane 1, the dolabradanes 2 and 3, the kauranes 4-7, the cyclopropakauranes 8 and 9, the hirtusanes 10-15, the germacradiene esters 16-18 and the C-25 compound 21, presumably formed by a Diels-Alder reaction between compound 18 and a monoterpene. All structures were elucidated using high field 1D and 2D NMR techniques. MS fragmentation patterns are here reported. The absolute configurations of 4 and 9 were elucidated by using circular dichroism. The separation was performed with modern chromatographic technics.es
dc.descriptionThe roots of Croton hirtus (Euphorbiaceae) collected in Paraiso, Cartago (Costa Rica) afforded, in addition to the few known metabolites, 20 new compounds: the bis-nor dolabradane 1, the dolabradanes 2 and 3, the kauranes 4-7, the cyclopropakauranes 8 and 9, the hirtusanes 10-15, the germacradiene esters 16-18 and the C-25 compound 21, presumably formed by a Diels-Alder reaction between compound 18 and a monoterpene. All structures were elucidated using high field 1D and 2D NMR techniques. MS fragmentation patterns are here reported. The absolute configurations of 4 and 9 were elucidated by using circular dichroism. The separation was performed with modern chromatographic technics.en-US
dc.formatapplication/pdf
dc.identifierhttp://revistas.ucr.ac.cr/index.php/rbt/article/view/14943
dc.identifier.urihttps://hdl.handle.net/10669/27225
dc.languagespa
dc.publisherUniversidad de Costa Ricaen
dc.rightsacceso abierto
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol.52 (1) March 2004; 269-285en
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol.52 (1) March 2004; 269-285es
dc.sourceRevista Biología Tropical; Vol.52 (1) March 2004; 269-285pt-PT
dc.source2215-2075
dc.source0034-7744
dc.subjectcroton hirtusen
dc.subjecteuphorbiaceaeen
dc.subjectditerpenesen
dc.subjectkauranesen
dc.subject18-cyclopropakauraneen
dc.subjecthirtusaneen
dc.subjectsesquiterpenesen
dc.titleDiterpenos y otros constituyentes de Croton hirtus (Euphorbiaceae)es
dc.typeartículo original

Files

Collections

Revista de Biología Tropical