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Germacranolides from Mikania guaco

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dc.creatorRüngeler, Peter
dc.creatorBrecht, Volker
dc.creatorTamayo Castillo, Giselle
dc.creatorMerfort, Irmgard
dc.date.accessioned2022-12-02T15:04:37Z
dc.date.available2022-12-02T15:04:37Z
dc.date.issued2001-03
dc.description.abstractFourteen novel sesquiterpene lactones of the germacranolide type have been isolated from the aerial parts of Mikania guaco: six costunolide, two melampolide and six germacra-4-trans,10(14),11(13)-trien-12,6α-olide derivatives. Except for one compound all the others possess a carbonyl function at C-9. Eight were obtained in the form of four isomer pairs which were difficult to separate. Structure elucidation was based on mass and 1D and 2D NMR measurements. Low energy conformations were obtained by quantum mechanical calculations. Pyrrolizidine alkaloids could not be detected.es
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Químicaes
dc.description.sponsorshipInstitut für Organische und Makromolekulare Chemie//IOMC/Alemaniaes
dc.description.sponsorshipUniversität Düsseldorf//HHU/Alemaniaes
dc.description.sponsorshipUniversidad Nacional//UNA/Costa Ricaes
dc.description.sponsorshipUniversidad de Costa Rica//UCR/Costa Ricaes
dc.description.sponsorshipInstituto Nacional de Biodiversidad//INBio/Costa Ricaes
dc.description.sponsorshipInstitut für Organische Chemie///Alemaniaes
dc.description.sponsorshipUniversität Freiburg//ALU/Alemaniaes
dc.description.sponsorshipUniversität Bonn/[ME 1389/1-1]/UniBonn/Alemaniaes
dc.identifier.citationhttps://www.sciencedirect.com/science/article/pii/S0031942200003940#!
dc.identifier.doihttps://doi.org/10.1016/S0031-9422(00)00394-0
dc.identifier.issn0031-9422
dc.identifier.urihttps://hdl.handle.net/10669/87850
dc.language.isoeng
dc.rightsacceso abierto
dc.sourcePhytochemistry; Vol.56 Núm. 5: 2001 pp. 475-489es
dc.subjectMikania guacoes
dc.subjectAsteraceaees
dc.subjectStructure elucidationes
dc.subjectSesquiterpene lactoneses
dc.subjectGermacranolideses
dc.subjectPHYTOCHEMISTRYes
dc.titleGermacranolides from Mikania guacoes
dc.typeartículo originales

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