Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
A New N-Methyltetrahydroprotoberberine Alkaloid from Tinospora hainanensis
Youying GUOKeisuke KOJIMALianbo LINXiaowen FUChangqi ZHAOKeiichiro HATANOYing-jie CHENYukio OGIHARA
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1999 Volume 47 Issue 2 Pages 287-289

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Abstract

Several species of the general Tinospora (Menispermaceae) are widely distributed over Asia and Africa and are well-known for their medicinal properties. From the stems of Tinospora hainanensis, a new N-methyltetrahydroprotoberberine alkaloid, N-methyltetrahydrocolumbamine, was isolated and characterized on the basis of NMR, MS and X-ray.

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© The Pharmaceutical Society of Japan
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