作者:Abdou Tchoukoua、Louis Pergaud Sandjo、Felix Keumedjio、Bonaventure Tchaleu Ngadjui、Gilbert Kirsch
DOI:10.1007/s10600-013-0753-3
日期:2013.11
A new ceramide (1) along with lupeol (2) and a mixture of β-sitosterol and stigmasterol, oleanolic acid (4), maslinic acid (5), β-sitosterol glucopyranoside (6), and trans-tiliroside (7) were isolated from Triumfetta rhomboidea (Tiliaceae). Their structures were determined on the basis of spectroscopic methods and mass spectrometry analysis, as well as by comparison of their physical and spectral data with those reported in the literature. The cytotoxic activity of crude extract, fractions, and some compounds were evaluated against human fibrosarcoma cancer cell line HT1080 using flow cytometry. The ethyl acetate fraction showed weak activity while the crude extract and the hexane and n-butanol fractions presented less than 50% of cell growth inhibition.
新的神经酰胺 (1) 与羽扇豆醇 (2) 以及 β-谷甾醇和豆甾醇的混合物、齐墩果酸 (4)、山楂酸 (5)、β-谷甾醇吡喃葡萄糖苷 (6) 和反式替罗苷 (7)从 Triumfetta rhomboidea(椴树科)中分离出来。它们的结构是根据光谱方法和质谱分析,以及通过将它们的物理和光谱数据与文献报道的数据进行比较来确定的。使用流式细胞术评估粗提物、级分和一些化合物针对人纤维肉瘤癌细胞系 HT1080 的细胞毒活性。乙酸乙酯组分表现出弱活性,而粗提物以及己烷和正丁醇组分表现出小于50%的细胞生长抑制。