neo-Clerodane diterpenoids from Baccharis flabellata

Three diterpenoid derivatives were isolated from the acetone extract of Baccharis flabellata. Their structures were elucidated as 2,19;15,16-diepoxy- neo-clerodan-3,13(16),14-trien-18-oic acid, 15,16-epoxy-5,10- seco-clerodan-1(10),2,4,13(16),14-pentaen-18,19-olide and 15,16-epoxy- neo-clerodan-1,3,...

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Veröffentlicht in:	Phytochemistry (Oxford) 2002-10, Vol.61 (4), p.389-394
Hauptverfasser:	Juan Hikawczuk, Virginia E, Rossomando, Pedro C, Giordano, Oscar S, Saad, José Roberto
Format:	Artikel
Sprache:	eng
Schlagworte:	Asteraceae Baccharis - chemistry Baccharis flabellata Biological and medical sciences Chemical constitution Diterpenes - chemistry Diterpenes - isolation & purification Diterpenoids Fundamental and applied biological sciences. Psychology Molecular Structure neo-Clerodane-type Plant Components, Aerial - chemistry Plant physiology and development
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Zusammenfassung:	Three diterpenoid derivatives were isolated from the acetone extract of Baccharis flabellata. Their structures were elucidated as 2,19;15,16-diepoxy- neo-clerodan-3,13(16),14-trien-18-oic acid, 15,16-epoxy-5,10- seco-clerodan-1(10),2,4,13(16),14-pentaen-18,19-olide and 15,16-epoxy- neo-clerodan-1,3,13(16),14-tetraen-18,19-olide through spectroscopic analyses. In the aerial parts of B. flabellata three neo-clerodane diterpenoids, 2,19;15,16-diepoxy- neo-clerodan-3,13(16),14-trien-18-oic acid, 15,16-epoxy-5,10- seco-clerodan-1(10),2,4,13(16),14-pentaen-18,19-olide and 15,16-epoxy- neo-clerodan-1,3,13(16),14-tetraen-18,19-olide, were isolated.
ISSN:	0031-9422 1873-3700
DOI:	10.1016/S0031-9422(02)00241-8