Canthin-6-one and beta-carboline alkaloids from Eurycoma harmandiana |
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| Authors: | Kanchanapoom T Kasai R Chumsri P Hiraga Y Yamasaki K |
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| Affiliation: | Institute of Pharmaceutical Sciences, Faculty of Medicine, Hiroshima University, Japan. |
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| Abstract: | Two alkaloids, canthin-6-one 9-O-beta-glucopyranoside and 7-hydroxy-beta-carboline 1-propionic acid, were isolated from the roots of Eurcoma harmandiana together with the five known canthin-6-one alkaloids, 9-hydroxycanthin-6-one, 9-methoxycanthin-6-one, 9,10-dimethoxycanthin-6-one, canthin-6-one and canthin-6-one N-oxide, and the two known beta-carboline alkaloids, beta-carboline 1-propionic acid and 7-methoxy-beta-carboline 1-propionic acid. Their structures were based on analyses of spectroscopic data. |
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