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New Sesquiterpene‐Coumarin Ethers from Anthemis cretica
Author(s) -
Hofer Otmar,
Greger Harald
Publication year - 1985
Publication title -
liebigs annalen der chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0170-2041
DOI - 10.1002/jlac.198519850604
Subject(s) - sesquiterpene , chemistry , coumarin , circular dichroism , stereochemistry , bicyclic molecule , nuclear magnetic resonance spectroscopy , organic chemistry
The roots of two provenances of Anthemis cretica ssp. cretica afforded in addition to two known derivatives five new isofraxidin‐derived sesquiterpene ethers 3 – 7 . All new compounds are characterized by bicyclic keto‐sesquiterpene moieties. The structures were elucidated mainly by 1 H NMR spectroscopy and the absolute configurations were determined by circular dichroism.