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Eucalmaidins A−E, (+)-Oleuropeic Acid Derivatives from the Fresh Leaves of Eucalyptus maideni

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journal contribution
posted on 25.09.2009, 00:00 by Li-Wen Tian, Ying-Jun Zhang, Yi-Fei Wang, Chi-Choi Lai, Chong-Ren Yang
Five new (+)-oleuropeic acid derivatives, eucalmaidins A−E (15), together with 12 known compounds (617), were isolated from the fresh leaves of Eucalyptus maideni. Structures of the new compounds were determined on the basis of spectroscopic analyses (HSQC, HMBC, and 1H−1H COSY), chemical degradation, and enzymatic hydrolysis. Of the tested compounds, only quercetin showed slight anti-herpes simplex virus 1 (HSV-1) activity in vitro.

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