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Two Novel Poly-Oxygen Bipyridine Alkaloids from Speranskia tuberculata |
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| Authors: | Jian Gong SHI Han Qing Wang Min WANG Guang Xiong ZHOU Yong Chun YANG Wen Yan HU |
| Abstract: | Two novel poly -oxygen bipyridine alkaloids, speranculatines A (1) and B (2) have been isolated from speranskia tuberculata. Their structures were elucidated by spectroscopic methods including 2D NMR techniques and X-ray crystallographic analysis. |
| Keywords: | Speranskia tuberculata Euphorbiaceae speranculatines A and B. |
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