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Phytochemical study of the trunk bark of Citharexylum spinosum L. growing in Tunisia: Isolation and structure elucidation of iridoid glycosides
Phytochemistry ( IF 3.8 ) Pub Date : 2018-02-01 , DOI: 10.1016/j.phytochem.2017.11.012
Ilyes Saidi , Pierre Waffo-Téguo , Asma E.L. Ayeb-Zakhama , Fethia Harzallah-Skhiri , Axel Marchal , Hichem Ben Jannet

A phytochemical investigation of the trunk bark ethyl acetate extract of Citharexylum spinosum L. has led to the isolation of four previously undescribed iridoid glycosides, tunispinosides A-D, and five known phenylethanoid glycosides, verbascoside, leucosceptoside A, martynoside, isoverbascoside and plantainoside C, together with 4-hydroxy-2,6-dimethoxyphenyl 6'-O-vanilloyl-β-D-glucopyranoside, two 8,3'-neolignan glycosides, plucheosides D1-D2, coniferyl aldehyde, vanillic acid, syringic acid, ferulic acid and tyrosol. All compounds were isolated for the first time from C. spinosum. Their isolation was carried out using silica gel column and high performance liquid chromatography (HPLC). Structures were established by spectroscopic means including 1D and 2D NMR experiments, and spectrometric ESI-HRMS analysis.

中文翻译:

突尼斯Citarexylum spinosum L.树皮的植物化学研究:环烯醚萜苷的分离与结构解析

对 Citharexylum spinosum L. 树干树皮乙酸乙酯提取物的植物化学研究导致分离出四种先前未描述的环烯醚萜苷、突尼斯核苷 AD 和五种已知的苯乙醇苷、毛蕊花苷、白芨苷 A、马丁糖苷、异草木素苷和车前草苷 C, 4-羟基-2,6-二甲氧基苯基 6'-O-香草酰-β-D-吡喃葡萄糖苷、两种 8,3'-新木脂素糖苷、毛蕊花苷 D1-D2、松柏醛、香草酸、丁香酸、阿魏酸和酪醇。所有化合物均为首次从棘球藻中分离得到。使用硅胶柱和高效液相色谱(HPLC)进行它们的分离。结构是通过光谱方法建立的,包括 1D 和 2D NMR 实验,以及光谱 ESI-HRMS 分析。
更新日期:2018-02-01
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