Labdane Diterpenes from Juniperus communis L. Berries

A phytochemical study of the methanol extract of Juniperus communis berries was undertaken. The crude extract was analysed by HPLC-UV and the isolation of the minor compounds was performed by centrifugal partition chromatography. By this means, five diterpenes were isolated, one of which was a new l...

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Veröffentlicht in:	Phytochemical analysis 2006, Vol.17 (1), p.32-35
Hauptverfasser:	Martin, A.M, Queiroz, E.F, Marston, A, Hostettmann, K
Format:	Artikel
Sprache:	eng
Schlagworte:	Centrifugal partition chromatography chemical constituents of plants chemical structure Chromatography, Liquid - methods Cupressaceae diterpenes Diterpenes - chemistry Diterpenes - isolation & purification diterpenoids fruits (plant anatomy) Juniperus - chemistry Juniperus communis labdane diterpene Magnetic Resonance Spectroscopy Mass Spectrometry phytochemicals plant extracts spectral analysis Spectrophotometry, Ultraviolet
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Beschreibung
Zusammenfassung:	A phytochemical study of the methanol extract of Juniperus communis berries was undertaken. The crude extract was analysed by HPLC-UV and the isolation of the minor compounds was performed by centrifugal partition chromatography. By this means, five diterpenes were isolated, one of which was a new labdane diterpene 15,16-epoxy-12-hydroxy-8(17),13(16),14-labdatrien-19-oic acid. The structures of the isolated compounds were elucidated by spectroscopic methods, including UV, NMR, MS and HR-MS.
ISSN:	0958-0344 1099-1565
DOI:	10.1002/pca.878