Naphthoquinone Derivatives and Lignans from the Paraguayan Crude Drug “Tayï Pytá” (Tabebuia heptaphylla, Bignoniaceae)
| dc.contributor.author | Schmeda-Hirschmann, Guillermo | |
| dc.contributor.author | Papastergiou, Fani | |
| dc.date.accessioned | 2018-10-02T14:02:02Z | |
| dc.date.available | 2018-10-02T14:02:02Z | |
| dc.date.issued | 2003 | |
| dc.description.abstract | The Paraguayan crude drug “tayï pytá” is used to treat cancer, wounds and inflammation. It consist of the bark and trunkwood of Tabebuia heptaphylla (Bignoniaceae). A phytochemical study of the crude drug gave, in addition to previously described naphthoquinones and the known lignans cycloolivil and secoisolariciresinol, three new lapachenol (lapachonone)-, two naphthofuran-, a chromone and a naphthalene derivative. The structures were elucidated by means of high field NMR spectroscopy. The biological activity of the main compound lapachol and the related α-lapachone as well as the lignans cycloolivil and secoisolariciresinol can explain, at least in part, the effect atributed to the crude drug in Paraguayan folk medicine. | en |
| dc.identifier.eissn | 1865-7125 | |
| dc.identifier.issn | 0939-5075 | |
| dc.identifier.uri | https://depositonce.tu-berlin.de/handle/11303/8265 | |
| dc.identifier.uri | http://dx.doi.org/10.14279/depositonce-7416 | |
| dc.language.iso | en | |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/3.0/ | |
| dc.subject.ddc | 570 Biowissenschaften; Biologie | de |
| dc.subject.other | Tabebuia heptaphylla | en |
| dc.subject.other | Bignoniaceae | en |
| dc.subject.other | Naphthoquinones | en |
| dc.title | Naphthoquinone Derivatives and Lignans from the Paraguayan Crude Drug “Tayï Pytá” (Tabebuia heptaphylla, Bignoniaceae) | en |
| dc.type | Article | en |
| dc.type.version | publishedVersion | en |
| dcterms.bibliographicCitation.doi | 10.1515/znc-2003-7-809 | |
| dcterms.bibliographicCitation.issue | 7-8 | |
| dcterms.bibliographicCitation.journaltitle | Zeitschrift für Naturforschung C | de |
| dcterms.bibliographicCitation.originalpublishername | De Gruyter | en |
| dcterms.bibliographicCitation.originalpublisherplace | Berlin | en |
| dcterms.bibliographicCitation.pageend | 501 | |
| dcterms.bibliographicCitation.pagestart | 495 | |
| dcterms.bibliographicCitation.volume | 58 | |
| tub.accessrights.dnb | free | |
| tub.affiliation | Fak. 2 Mathematik und Naturwissenschaften::Inst. Chemie | de |
| tub.affiliation.faculty | Fak. 2 Mathematik und Naturwissenschaften | de |
| tub.affiliation.institute | Inst. Chemie | de |
| tub.publisher.universityorinstitution | Technische Universität Berlin | de |
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