(+)-catechin 第1页

从花生衣中分得二个单体,根据光谱分析确定其结构分别为二聚原花色甙元-A类型化合物(Ⅰ)(暂命名为花生素),D-(+)-儿茶素(Ⅱ),Ⅱ为花生衣止血有效成分,Ⅰ也具有一些生理活性。 Chemical constituents from seeds of Desmodium styracifolium and their scavenging activity of DPPH free radicals