A New ent-Clerodane Diterpene from the Aerial Parts of Baccharis gaudichaudiana

A new ent-clerodane diterpene, named bacchariol (1) was isolated from the aerial parts of Baccharis gaudichaudiana DC. (Compositae), together with known ent-clerodane diterpenes (2, 3), eight known flavonoids (4—11) and 3, 5-dicaffeoylquinic acid (12). Their structures were determined by spectroscop...

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Veröffentlicht in:	Chemical & Pharmaceutical Bulletin 2003, Vol.51(2), pp.197-199
Hauptverfasser:	Akaike, Shihori, Sumino, Megumi, Sekine, Toshikazu, Seo, Shujiro, Kimura, Nobuhito, Ikegami, Fumio
Format:	Artikel
Sprache:	eng
Schlagworte:	antioxidant bacchariol Baccharis Baccharis gaudichaudiana Biological and medical sciences Diterpenes - chemistry Diterpenes - isolation & purification Diterpenes, Clerodane ent-clerodane diterpene General pharmacology Humans Medical sciences Paraguayan folk medicine Pharmacognosy. Homeopathy. Health food Pharmacology. Drug treatments Plant Components, Aerial Plant Extracts - chemistry Plant Extracts - isolation & purification
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Zusammenfassung:	A new ent-clerodane diterpene, named bacchariol (1) was isolated from the aerial parts of Baccharis gaudichaudiana DC. (Compositae), together with known ent-clerodane diterpenes (2, 3), eight known flavonoids (4—11) and 3, 5-dicaffeoylquinic acid (12). Their structures were determined by spectroscopic analyses. Flavonoids (7, 8, 11) and 12 showed moderate scavenging activities toward 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radicals.
ISSN:	0009-2363 1347-5223
DOI:	10.1248/cpb.51.197