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Structure Determination of a New Spirobicyclic Triterpenoid from Iris foetidissima
Author(s) -
Marner FranzJosef,
KarimiNejad Yasmin,
Jaenicke Lothar,
Wray Victor
Publication year - 1990
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.19900730223
Subject(s) - chemistry , biogenesis , rhizome , triterpenoid , stereochemistry , two dimensional nuclear magnetic resonance spectroscopy , heteronuclear molecule , traditional medicine , nuclear magnetic resonance spectroscopy , biochemistry , medicine , gene
The novel iridal 10 has been isolated from rhizome extracts of Iris foetidissima. Its structure was established by spectroscopic methods and oxidative degradation. Final proof of the spirobicyclic nature of the compound – a new feature in the triterpenoid field – was afforded by the correlations observed in the 2D‐HMBC‐ ( 1 H‐detected multiple‐bond heteronuclear multiple‐quantum coherence) spectrum. The possible biogenesis of this unusual compound is discussed.