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    Humulane and Germacrane Sesquiterpenes from Ferula lycia
    (Amer Chemical Soc, 2010) Alkhatib, Racha; Hennebelle, Thierry; Joha, Sami; Roumy, Vincent; Guzel, Yelda; Biabiany, Murielle; Idziorek, Thierry
    Five new juniferol esters (1-5), along with six known humulane derivatives (6-11), were isolated from the roots of Ferula lycia, an endemic Turkish species. The fruits of the same species were also investigated and led to the isolation of these same compounds, as well as two known germacrane esters (12 and 13). All isolated sesquiterpenes were assayed for cytotoxicity against two tyrosine kinase inhibitor-resistant cell lines, K562R and DA1-3b/M2(BCR-ABL). The two most active compounds, juniferinin (7) and 6-beta-p-hydroxybenzoyloxygermacra-1(10),4-diene (12), were moderately active against Raji lymphoma cells but also displayed some toxicity against healthy bone marrow cells.