Oldhamine A, a novel alkaloid from Daphniphyllum oldhami
Oldhamine A, a novel alkaloid from Daphniphyllum oldhami
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DOI：
10.1016/j.tetlet.2008.03.126
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发表时间：
2008-05-19
影响因子：
1.8
通讯作者：
Hao, Xiaojiang
中科院分区：
文献类型：
--
作者：
Tan, Chengjian;Di, Yingtong;Hao, Xiaojiang
从金合欢属植物金合欢枝中分离得到一种新的生物碱-金合欢胺A。根据光谱数据和单晶X-射线衍射晶体学鉴定了oldhamine A的结构。这是首次用X-射线衍射法得到具有两个含氮五环的虎皮楠生物碱。此外，还进行了共轭烯醇单元与负离子的相互转化。(C)2008爱思唯尔有限公司保留所有权利。
Oldhamine A, a novel alkaloid with an unusual cyclopentadienyl anion in the fused-pentacyclic skeleton was isolated from the twigs of Daphniphyllum oldhami. The structure of oldhamine A was elucidated based on the spectroscopic data and the single-crystal X-ray diffraction crystallography. It is the first X-ray diffraction of the Daphniphyllum alkaloids with nitrogen-containing two pentacyclic rings. The inter-conversion between cyclopentadienyl anion and conjugated enolic unit was also conducted. (C) 2008 Elsevier Ltd. All rights reserved.