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首页> 外文期刊>Heterocycles: An International Journal for Reviews and Communications in Heterocyclic Chemistry >FLAVONOIDS FROM THE LEAVES OF NICOTIANA TABACUM AND THEIR ANTI-TOBACCO MOSAIC VIRUS ACTIVITY
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FLAVONOIDS FROM THE LEAVES OF NICOTIANA TABACUM AND THEIR ANTI-TOBACCO MOSAIC VIRUS ACTIVITY

机译：烟草叶中的黄酮类化合物及其抗烟草烟叶病毒活性

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摘要

Three new flavonoids, 8-formyl-4'-hydroxy-7-methoxy-6-methyl-flavone (1), 8-formyl-4',7-dimethoxy-6-methylflavone (2), 4',6-dihydroxy-7-methoxy-8-methoxycarbonylflavone (3) together with two known flavonoids (4 and 5) were isolated from the leaves of Nicotiana tabacum. Their structures were determined by means of HRESIMS and extensive 1D and 2D NMR spectroscopic studies. Compounds 1-3 were tested for their anti-tobacco mosaic virus (anti-TMV) activities. The results showed that compounds 1-3 exhibited inhibition rates (%) of 18.4, 22.1 and 16.4, respectively.
机译：三种新的类黄酮，8-甲酰基-4'-羟基-7-甲氧基-6-甲基黄酮（1），8-甲酰基-4'，7-二甲氧基-6-甲基黄酮（2），4'，6-二羟基黄酮从烟草的叶子中分离出-7-甲氧基-8-甲氧基羰基黄酮（3）和两种已知的类黄酮（4和5）。通过HRESIMS以及广泛的1D和2D NMR光谱研究确定了它们的结构。测试了化合物1-3的抗烟草花叶病毒（anti-TMV）活性。结果表明，化合物1-3的抑制率（％）分别为18.4、22.1和16.4。

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