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New triterpenoid saponin glycosides from the fruit fibers of Trichosanthes cucumerina L.

机译:新的Triterpenoid Saponin糖苷,来自Trichosanthes Cucumerina L的果纤维。

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Five new triterpenoid saponin glycosides, trichocucumerisides A–E ( 1–5 ), together with eleven known compounds ( 6–16 ) were isolated from Trichosanthes cucumerina fruit fibers. The structures of the new compounds were elucidated by detailed analysis of NMR and mass spectroscopic data as well as chemical reactions. The anti-inflammatory study against nitric oxide (NO) production in lipopolysaccharide (LPS)-stimulated RAW264.7 cells shows that compounds 7 and 9 exhibited stronger NO inhibitory activity, with IC _(50) values of 3.0 and 2.7 μM, respectively, with comparison to positive references Celecoxib and aminoguanidine (IC _(50) values 75.7 and 75.0 μM, respectively). Compounds 7 and 9 also possessed a greater selectivity index (SI) of approximately 3–4-fold activity than that of the positive references.
机译:五种新的三萜类皂苷糖苷,与11个已知的化合物(6-16)一起分离出与ricumerina果实纤维分离的吡喹酮苷A-e(1-5)。通过详细分析NMR和质谱数据以及化学反应,阐明了新化合物的结构。对脂多糖(LPS)的一氧化氮(NO)产生的抗炎研究(LPS) - 刺激的RAW264.7细胞表明,化合物7和9分别表现出较强的抑制活性,分别具有3.0和2.7μm的IC _(50)值,与阳性参考文献相比,分别与氨基焦和氨基胍(IC _(50)值分别为75.7和75.0μm)。化合物7和9还具有比阳性参考​​的较大3-4倍的选择性指数(Si)。

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