Herbicidal Quassinoids Isolated from Ailanthus altissima Leaves
bioRxiv (Cold Spring Harbor Laboratory)(2023)
摘要
Bioassay-guided fractionation of the methanolic extract of Ailanthus altissima leaves led to the isolation of one new quassinoid, named 6-α-tigloyloxyailanthone (3), and three known quassinoids, ailanthone (1), 13, 18-dehydroglaucarubinone (2), and 6-α-tigloyloxychaparrinone (4) by a series of chromatographic methods. The structures of the isolates were established by one-dimensional (1D) and 2D-nuclear magnetic resonance (NMR) analysis along with high-resolution time-of-flight mass spectrometry (HRTOFMS) and chemical methods. In addition, herbicidal activity against five grassy weeds and five broad-leaf weeds was evaluated.
### Competing Interest Statement
The authors have declared no competing interest.
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关键词
herbicidal quassinoids,ailanthus altissima
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