Intraspecific Chemical Variability of Essential Oil of Hoslundia opposita
Chemical investigation on leaves oil of Hoslundia opposita, aromatic plant used 
in traditional medicine, harvested from 20 localities of C?te d’Ivoire 
was realized by GC and GC/MS. In total, 101 compounds were identified 
accounting to 92% - 99%, aromatic compounds such benzyl benzoate and sesquiterpenes 
namely germacrene D, β-caryophyllene and α-humulene hydroxyl were found as the major constituents. As regard, 
the chemical profiles of our samples, it was found a great chemical variability 
suggesting a high polymorphism degree. In order to study this chemical 
variability, the results were submitted to the principal components and cluster 
analysis which allowed distinguishing two main groups of essential oils with 
respect to sampling site. The cluster I was dominated by benzyl benzoate (15%) 
and thymol (7.4%) comprising 6 localities, cluster II was characterized by 
phytol (8.5%) and α-humulene (7%) and constituted by 14 localities.
Antimalarial compounds from Hoslundia opposita
Abstract Four new abietane-type esters, 3-O-benzoylhosloppone, 3-O-cinnamoylhosloppone, 3-O-benzoylhinokiol and 3-O-benzoylhosloquinone were isolated from the root bark of the antimalarial plant Hoslundia opposita Vahl. and their structures were determined by a combination of spectroscopic methods and chemical correlations. 3-O-Benzoylhosloppone inhibits the growth of the multidrug resistant strain K1 of Plasmodium falciparum in vitro with an IC50-value of 0.4 μg ml−1.
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