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

Shihori Akaike; Megumi Sumino; Toshikazu Sekine; Shujiro Seo; Nobuhito Kimura; Fumio Ikegami

doi:10.1248/cpb.51.197

Notes

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

Shihori Akaike, Megumi Sumino, Toshikazu Sekine, Shujiro Seo, Nobuhito Kimura, Fumio Ikegami

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Keywords: ent-clerodane diterpene, Baccharis gaudichaudiana, Paraguayan folk medicine, bacchariol, antioxidant

JOURNAL FREE ACCESS

2003 Volume 51 Issue 2 Pages 197-199

DOI https://doi.org/10.1248/cpb.51.197

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Abstract

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.

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