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Bin Wang Wei‐Dong Zhang Yun‐Heng Shen Jian Tang Chuan Zhang Run‐hui Liu Min Lin Hui‐Liang Li 《Helvetica chimica acta》2008,91(2):244-248
Phytochemical studies on Veratrum nigrum L., collected in Shanxi, P. R. China, resulted in the isolation of two new steroidal alkaloids, 23‐methoxycyclopamine ( 1 ) and 15‐O‐(2‐methylbutanoyl)‐3‐O‐veratroylprotoverine ( 2 ). The structures of the two new compounds were established by means of extensive NMR spectroscopic studies. 相似文献
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