Journal
PLANTA MEDICA
Volume 78, Issue 4, Pages 386-389Publisher
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0031-1298157
Keywords
Eryngium maritimum L.; Apiaceae; essential oil; novel oxygenated sesquiterpenes; 2D NMR; antibacterial activity; bicyclo[4.4.0] decane
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Investigation of the essential oil of the aerial parts of Eryngium maritimum L. from Corsica led to the isolation of one known sesquiterpene (1) and three new oxygenated sesquiterpenes with a muurolane or cadinane skeleton (2-4). Structure assignments of 4 beta H-muurol-9-en-15-al (1), 4 beta H-cadin-9-en-15-al (2), 4 beta H-muurol-9-en-15-ol (3) and 4 beta H-cadin-9-en-15-ol (4) were carried out by GC/MS (EI and CI) and comprehensive 1D and 2D NMR spectroscopy. Antibacterial activity of Eryngium maritimum L. oil and column chromatography fractions have been investigated for the first time. The oxygenated fraction, which contains the four sesquiterpenes, was efficient against Listeria monocytogenes and Echerichia coli.
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