[关键词]
[摘要]
从石竹科植物金铁锁Psammosilene tunicoides中分离得到 2个环二肽及由 2个环二肽组成的混合物。它们的结构经光谱鉴定为环(丙-丙)(Ⅰ)、环(丙-缬)(Ⅱ)、环(丙-亮)(Ⅲ)和环(丙-异亮)(Ⅳ)。它们均为新的天然产物。
[Key word]
[Abstract]
From the root of Psammosilene tunicoides W. C. Wu et C. Y. Wu, two cyclic dipeptides(Ⅰ, Ⅱ) and a mixture of other two cyclic dipeptides(Ⅲ, Ⅳ) were obtained. Their structures were elucidated as cyclo Ala-Ala(Ⅰ), cyclo Ala-Val(Ⅱ), cyclo Ala-Leu(Ⅲ), and cyclo Ala-Ile(Ⅳ), byspectroscopic means respectively. All of them are new natural products.
[中图分类号]
[基金项目]
云南省教委资助课题(9911143)