Structures of Eremophilenolides from the Rhizomes of Petasites japonicus MAXIM.

Yasunori YAOITA; Kimiko NAGATA; Noriko SUZUKI; Masao KIKUCHI

doi:10.1248/cpb.40.3277

Chemical and Pharmaceutical Bulletin

Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363

Structures of Eremophilenolides from the Rhizomes of Petasites japonicus MAXIM.

Yasunori YAOITA, Kimiko NAGATA, Noriko SUZUKI, Masao KIKUCHI

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Keywords: Petasites japonicus, Compositae, sesquiterpenoid, eremophilenolide

JOURNAL FREE ACCESS

1992 Volume 40 Issue 12 Pages 3277-3279

DOI https://doi.org/10.1248/cpb.40.3277

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Abstract

Three new eremophilenolides, 6β-angeloyloxy-3β-hydroxyeremophil-7(11)-en-12, 8β-olide (1), 3β-hydroxy-6β-tigloyloxyeremophil-7-(11)-en-12, 8β-olide (2) and 3β, 6β-diangeloyloxyeremophil-7(11)-en-12, 8β-olide (3), were isolated from the dried rhizomes of Petasites japonicus MAXIM. (Compositae) with four known sesquiterpenoids. The structures of these compounds were elucidated on the basis of spectroscopic evidence.

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