Isoflavanones from the Heartwood of Swartzia polyphylla and Their Antibacterial Activity against Cariogenic Bacteria.
作者:Kenji OSAWA、Hideyuki YASUDA、Takashi MARUYAMA、Hiroshi MORITA、Koichi TAKEYA、Hideji ITOKAWA
DOI:10.1248/cpb.40.2970
日期:——
The methanolic extract of Swartzia polyphylla DC. heartwood had antibacterial activity against cariogenic bacteria, the mutans Streptococci. The chromatographic purification of the extract afforded seven flavonoids. Among them, three known isoflavanones, dihydrobiochanin A, ferreirin and darbergioidin, and one new isoflavanone, 5,2',4'-trihydroxy-7-methoxyisoflavanone (dihydrocajanin) had potent antibacterial
Swartzia polyphylla DC的甲醇提取物。心材具有抗龋齿变形链球菌的活性。提取物进行色谱纯化,得到七个类黄酮。其中,三种已知的异黄酮,二氢生物chanin A,铁瑞林和darbergioidin,以及一种新的异黄烷酮5,2',4'-三羟基-7-甲氧基异黄烷酮(二氢卡雅宁)对龋齿细菌具有有效的抗菌活性。在异黄酮衍生物上未检测到该作用。进一步进行了各种类黄酮的比较抗菌研究,并讨论了它们的构效关系。