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Journal of Asian Natural Products Research Volume 10, 2008 - Issue 7
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Original Articles

Four new alkaloids from Polyalthia nemoralis (Annonaceae)

Zi-Ming Lu The Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
,
Qing-Jian Zhang The Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
,
Ruo-Yun Chen The Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
&
De-Quan Yu The Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, ChinaCorrespondence[email protected]
Pages 656-664 | Received 10 Apr 2008, Accepted 21 May 2008, Published online: 17 Jul 2008
 
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Abstract

Four new alkaloids, polynemoralines A (1), B (2), C (3), and D (4), were isolated from the branches and leaves of Polyalthia nemoralis A DC. The structures of 1–4 were elucidated mainly on the basis of spectroscopic methods. The structure of 4 was confirmed by X-ray diffraction analysis.

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