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Xiang‐Hai Cai Chun‐Xia Zeng Tao Feng Yan Li Xiao‐Dong Luo 《Helvetica chimica acta》2010,93(10):2037-2044
Three new monoterpenoid indole alkaloids, (14α,15α)‐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 methods in combination with MS experiments. 相似文献
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