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Ouvrardianines A and B, Two New Norditerpenoid Alkaloids from Aconitum ouvrardianum

✍ Scribed by Hong Jing; Xiao-Dong Yang; Jing-Feng Zhao; Shu Yang; Hong-Bin Zhang; Liang Li

Publisher
John Wiley and Sons
Year
2009
Tongue
German
Weight
162 KB
Volume
92
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

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Two new norditerpenoid alkaloids, ouvrardianines A and B (1 and 2, resp.), together with eight known compounds, were isolated from Aconitum ouvrardianum. The structures of the new compounds were elucidated as (1__α__,6__α__,14__α__,16__β__)‐8‐(acetyloxy)‐13‐hydroxy‐1,6,16‐trimethoxy‐4‐(methoxymethyl)aconit‐19‐en‐14‐yl benzoate (1) and (1__α__,6__α__,14__α__,16__β__)‐8‐(acetyloxy)‐20‐formyl‐13‐hydroxy‐1,6,16‐trimethoxy‐4‐(methoxymethyl)aconitan‐14‐yl benzoate (2) on the basis of spectral analyses. The new compound 1 was found to contain the rare C(19)N imine group.

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