科研之友
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摘要
A new alloaromadendrane-type sesquiterpene, (-)-alloaromadendrane-3 beta,9 beta-diol (1), has been isolated from the aerial part of Caragana intermediia. The structure of (-)-alloaromadendrane-3 beta,9 beta-diol (1) was established by spectroscopic methods, including X-ray analysis that provided its relative stereochemistry. Bioassay showed that (-)-alloaromadendrane-3 beta,9 beta-diol (1) possesses anti-pyricularia oryzae P-2b activity with MIC value of 10 mu g/mL.
