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 |
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.