4',6,7-Trimethoxyisoflavone 是一种异黄酮,不仅对多种细菌和真菌表现出抗菌活性,还具有抗氧化作用。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
6-乙酰氨基-6-去氧-亚麻子精 | 6,7-dimethoxy-4'-hydroxy-isoflavone | 75199-40-5 | C17H14O5 | 298.295 |
4’,6,7-三羟异黄酮 | 6,7,4'-trihydroxyisoflavone | 17817-31-1 | C15H10O5 | 270.241 |
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.