Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5284649 | Tetrahedron Letters | 2008 | 4 Pages |
Abstract
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.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Chengjian Tan, Yingtong Di, Yuehu Wang, Ye Wang, Shuzhen Mu, Suo Gao, Yu Zhang, Ningchuan Kong, Hongping He, Jianxin Zhang, Xin Fang, Chunshun Li, Yang Lu, Xiaojiang Hao,