Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
Lindera cyclopentenedione intermediates from the roots of Lindera aggregataElectronic supplementary information (ESI) available: Tables of the 1D NMR data assignments of known compounds (5-9), 1D and 2D NMR spectra of new compounds, 1D NMR spectra of known ones, MS, HRMS, and IR spectra of new compounds and ECD computational details. See DOI: 10.1039/c8ra03094d
Erscheinungsjahr
2018-05
Link zum Volltext
Quelle
Free E-Journal (出版社公開部分のみ）
Beschreibungen/Notizen
Chromatographic fractionation of the roots of
Lindera aggregata
has led to the isolation of three new monomers of
Lindera
cyclopentenedione derivatives (
1-3
), a pair of new enantiomers of bi-linderone derivatives (
4a
/
4b
), and six known
Lindera
cyclopentenediones (
5-8
and
9a
/
9b
). Their structures were determined by NMR and MS data. The absolute configurations of the new bi-linderone derivative enantiomers (
4a
/
4b
) were determined by ECD calculation. (±)-Lindepentone A (
1
) presents the novel skeleton of 3,5-dioxocyclopent-1-enecarboxylate. Lindoxepines A (
2
) and B (
3
) present an unprecedented oxepine-2,5-dione derivative skeleton, which may be enlightening for the
in vivo
biosynthesis of the monomers of
Lindera
cyclopentenediones. A possible biosynthetic pathway for
1
and a plausible biosynthetic pathway from stilbenes to
Lindera
cyclopentenediones
via
the key intermediates
2
and
3
were postulated. The inhibitory activity of these compounds against three microorganisms was also evaluated.
Lindera
cyclopentenediones together with their dimers and novel biosynthetic intermediates were isolated from
Lindera aggregata
.
Sprache
–
Identifikatoren
eISSN: 2046-2069
DOI: 10.1039/c8ra03094d
Titel-ID: cdi_rsc_primary_c8ra03094d
Format
–
Weiterführende Literatur
Empfehlungen zum selben Thema automatisch vorgeschlagen von bX