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Adenanthusone, a New Ursane Type Nortriterpenoid from Isodon adenanthus
Author(s) -
Xiang Wei,
Song QiShi,
Zhang HongJie,
Li RongTao,
Na Zhi,
Sun HanDong
Publication year - 2004
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.200490255
Subject(s) - chemistry , stereochemistry , type (biology) , terpene , epoxy , organic chemistry , ecology , biology
Abstract A new ursane‐type nortriterpenoid, adenanthusone (=(11 α ,12 α )‐4‐demethyl‐11,12‐epoxy‐3,13‐dihydroxy‐2‐oxoursa‐3,20(30)‐diene‐28‐oic acid γ ‐lactone; 1 ) was isolated from Isodon adenanthus. Its structure was determined by NMR spectra and X‐ray crystallographic diffraction analysis. The biogenetic implication of the nortriterpene is discussed.