Biyoulactones A-C, New Pentacyclic Meroterpenoids from Hypericum chinense
Biyoulactones A-C, New Pentacyclic Meroterpenoids from Hypericum chinense
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DOI：
10.1021/ol2021548
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发表时间：
2011-10-21
期刊：
影响因子：
5.2
通讯作者：
Kobayashi, Jun'ichi
中科院分区：
文献类型：
--
作者：
Tanaka, Naonobu;Abe, Shuhei;Kobayashi, Jun'ichi
从金丝桃（Hypericum chinense）根中分离到3个新型五环萜类化合物，它们具有独特的二内酯结构，含有C-C键的双环和三环γ -内酯基团blyoulacones a- c(1-3)，并通过光谱数据对它们的结构进行了鉴定。通过NOESY和单晶x射线衍射分析，确定了1的相对立体化学性质和绝对立体化学性质。
Three novel pentacyclic meroterpenoids with a unique dilactone structure containing C-C bonded bi- and tricyclic gamma-iactone moieties, blyoulactones A-C (1-3), were isolated from the roots of Hypericum chinense, and their structures were elucidated on the basis of spectroscopic data. The relative and absolute stereochemistry of 1 was assigned by a combination of NOESY and a single crystal X-ray diffraction analysis.