作者:Maorong Suo、Tomihisa Ohta、Fumihide Takano、Shouwen Jin
DOI:10.3390/molecules18077336
日期:——
Three novel phenylpropanoid glycosides 2, 5, 6 were isolated from water extract of Tabebuia avellanedae, together with three known phenylpropanoid glycosides 1, 3, 4. All compounds were identified on the basis of spectroscopic analysis and chemical methods and, for known compounds, by comparison with published data. All isolated compounds showed strong antioxidant activity in the DPPH assay, and compound 5 give the highest antioxidant activity among all compounds, with an IC50 of 0.12 µM. All compounds exhibited moderate inhibitory effect on cytochrome CYP3A4 enzyme.
从 Tabebuia avellanedae 的水提取物中分离出了三种新型苯丙苷 2、5 和 6,以及三种已知的苯丙苷 1、3 和 4。根据光谱分析和化学方法对所有化合物进行了鉴定,并将已知化合物与已发表的数据进行了比较。所有分离出的化合物在 DPPH 试验中都表现出很强的抗氧化活性,其中化合物 5 的抗氧化活性最高,IC50 为 0.12 µM。所有化合物都对细胞色素 CYP3A4 酶有中等程度的抑制作用。