Lignans and diterpenes isolated from Tirpitzia ovoidea and their biological activities
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A new lignan, tirpitzin A (17) together with 20 known compounds (1-16, and 18-21) were isolated from the ethyl acetate soluble fraction of ethanol extract of the aerial parts of Tirpitzia ovoidea. The structure of new compound was elucidated by means of spectr... ...
