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[摘要]
从川山橙Melodinushemsleyanus中分得10个化合物,用光谱方法和化学反应鉴定了它们的结构,分别为:11-hydroxytabersonine(Ⅰ),scandine(Ⅱ),10-hydroxyscandine(Ⅲ),tubotaiwine(Ⅳ),tubotaiwineN-oxide(Ⅴ),15α-hydroxykopsinine(Ⅵ),vincoline(Ⅶ),19R-vindolinineN-oxide(Ⅷ),16β-hyaroxy-19R-vindolinine(Ⅸ)和16β-hydroxy-19S-vindolinineN-oxide(Ⅹ),其中Ⅹ为新化合物,药理筛选表明化合物Ⅰ有一定的抗肿瘤活性。
[Key word]
[Abstract]
10 compounds were isolated from Melodinus hemsleyanus Diels.and their structures were determined by spectral analysis and chemical reactions.They were 11-hydroxytabersonine(I),scandine(B),10-hydroxyscandine(l),tubotaiwine(N),tubotaiwine N-oxide(V),15a-hydroxykopsinine(VI),vincoline(11),19R-vindolinine N-oxide (VIE),16 (3-hydroxy-19R-vindolinine(M)and a new compound,16(3-hydroxy-19S-vindoline N oxide(X).Pharmacological screening revealed that I had antitumor activety.
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