壮丽含笑中的倍半萜成分及其化学分类学意义

Five sesquiterpenoids and one phenolic glycoside have been isolated from the dried branches of Michelia lacei and their structures were elucidated as(+) alloaromadendrane 4α,10β diol (1),D aromadendrane 4β,10α diol (2),spathulenol (3), parthenolide (4),11,13 dehydrolanuginolide (5) and syringin (6) by spectral means respectively Compounds 1 3 were aromadendrane and alloaromadendrane type sesquiterpenoids which were first isolated from the genus of Michelia Their chemotaxonomic values are also discussed briefly in this

壮丽含笑活性成分的提取分离及抗菌活性的研究

用溶剂提取和色谱技术进行分离(柱层析LSC,薄层层析TLC)壮丽含笑中具有抗菌活性的活性段,并用琼脂打孔法和二倍稀释法测定其活性段对标准金黄色葡萄球菌、标准大肠埃希菌、标准铜绿假单胞菌、标准白色念珠菌以及临床分离得到的耐甲氧西林金黄色葡萄球菌的体外抑菌效果。利用活性导向继续分离有活性的色谱段并追踪到活性单体。这对从植物中寻找抗MRSA的活性成分具有指导意义。