Abstract
A new C20-denudatine-type diterpenoid alkaloid (DA) 11S-aconicarnine D (1) and fifteen known DAs were isolated from the lateral roots of Aconitum brachypodum Diels. Their structures were identified on the basis of extensive spectroscopic analyses, NMR calculations and DP4+ analysis. Compounds 1 and 4 exhibited antimicrobial activity against Alternaria panax with MICs of 2.00 and 8.00 μg/mL (Nystatin, 1.00 μg/mL), respectively.
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