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KMID : 0620719970030010014
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Natural Product Sciences
1997 Volume.3 No. 1 p.14 ~ p.18
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The Constituents of Siegesbeckia orientalis
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Xiong Jiang
Ma Yunbao
Xu Yunlong
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Abstract
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Two new diterpenoids, orientalin A (1), and B (2), have been isolated together with six known compounds, kirenol (3), ent-16β, 17-dihydroxykauran-19-oic acid (4), ent-16β, 17-dihydroxykauran-19-oic acid-16β, 17-acetonide (5), 3,7-dimethylguercetin (6), ${\beta}-sitosterol$ (1), ent-16-acetoxy-2α,15,19-trihydroxypimar-8(14)-ene (2), respectively, on the basis of chemical and spectral evidence.
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KEYWORD
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Siegesbeckia orientalis, orientalin A and B, Compositae
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