Monoterpenoid Indole Alkaloids from Alst
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Xiang-Hai Cai; Chun-Xia Zeng; Tao Feng; Yan Li; Xiao-Dong Luo
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Article
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2010
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John Wiley and Sons
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German
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Three new monoterpenoid indole alkaloids, (14a,15a)-14,15-epoxyaspidofractinine (1) and maireines A and B (2 and 3, resp.), together with 19 known alkaloids, were isolated from the leaves and twigs of Alstonia mairei. The structures of the new compounds were elucidated by 1D-and 2D-NMR spectroscopic