The mutagenicity of the extract of Swertiae Herba is attributable to its xanthone derivatives. Seven active principles were isolated and six of them were identified as methylbellidifolin, methylswertianin, swertianin, bellidifolin, norswertianin and desmethylbellidifolin, all of which have already been isolated from this plant. The seventh mutagenic compound, a new xanthone derivative formulated as 5, 8-dimethylbellidifolin, was also obtained from methylbellidifolin by methylation with diazomethane as a minor product. The structure-mutagenicity relationship of these compounds, together with some other derivatives, is discussed.
獐牙菜
提取物的致突变性归因于其
呫吨酮衍
生物。分离出 7 种活性成分,其中 6 种被鉴定为methylbellidifolin、methylswertianin、swertianin、bellidifolin、norswertianin 和 desmethylbellidifolin,所有这些都已从该植物中分离出来。第七种诱变化合物是一种新的
呫吨酮衍
生物,被配制为 5, 8-二甲基bellidifolin,也是通过用
重氮甲烷甲基化作为次要产物从甲基bellidifolin 中获得的。讨论了这些化合物以及一些其他衍
生物的结构-致突变性关系。