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首页> 外文期刊>Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences >Antimicrobial and antioxidant isoflavonoid derivatives from the roots of Amphimas pterocarpoides
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Antimicrobial and antioxidant isoflavonoid derivatives from the roots of Amphimas pterocarpoides

机译:来自两栖类两栖类的根的抗菌和抗氧化剂异黄酮衍生物

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摘要

A new bis-isoflavone derivative, named amphiisoflavone (1), was isolated from the roots of Amphimas pterocarpoides, together with three known isoflavones, namely 8-methoxyisoformononetin (2), 6-methoxyisoformononetin (3) and isoformononetin (4). Chemical transformations carried out on compound 3 led to two new derivatives, 4'-acetoxy-6,7-dimethylisoflavone (3a) and 4'-O-prenyl-6,7-dimethylisoflavone (3p), along with a known compound, 4',6,7-trimethoxyisoflavone (3m). The structures of all compounds were elucidated from spectroscopic evidence, in particular by 1D and 2D NMR spectroscopic methods. These compounds were evaluated for their antioxidant properties and for their antimicrobial activities against a wide range of bacteria and fungi.
机译:从两栖类两栖类动物的根中分离出一种新的双异黄酮衍生物,名为安非黄酮(1),以及三种已知的异黄酮,即8-甲氧基异甲烯酮(2),6-甲氧基异甲酮(3)和异甲酮(4)。对化合物3进行的化学转化产生了两个新的衍生物4'-乙酰氧基-6,7-二甲基异黄酮(3a)和4'-O-异戊烯基-6,7-二甲基异黄酮(3p),以及一种已知的化合物4 ',6,7-三甲氧基异黄酮(3m)。从光谱证据,特别是通过1D和2D NMR光谱方法阐明了所有化合物的结构。对这些化合物的抗氧化性能以及对多种细菌和真菌的抗菌活性进行了评估。

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