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  • Title: New eremophilenolides from Ligulariopsis shichuana.
    Author: Wang W, Gao K, Jia Z.
    Journal: J Nat Prod; 2002 May; 65(5):714-7. PubMed ID: 12027747.
    Abstract:
    Four new eremophilenolides, 1-4, have been isolated from the whole plant of Ligulariopsis shichuana. Their structures were elucidated by spectroscopic methods, including 2D NMR experiments. Structures of compounds 1 and 2 were unequivocally established by X-ray diffraction experiments. All of these sesquiterpenes have eremophilane skeletons with 7(11)-en-8(12) lactone units. Compounds 1 and 2 showed moderate antibacterial activities against E. coli and B. subtilis.
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