Flavanonol Glycosides from Leaves of Phellodendron lavallei Introduced in Georgia
作者:K. G. Shalashvili、M. G. Sutiashvili、M. D. Alaniya、N. Sh. Kavtaradze、A. V. Skhirtladze
DOI:10.1007/s10600-018-2319-x
日期:2018.3
The new flavanonol glycoside (2S,3S)-3,5-dihydroxy-2-(4′-hydroxyphenyl)-8-(3-methylbut-2-en-1-yl)-4-oxo-3,4-dihydro-2H-chromen-7-yl-β-D-glucopyranosyl-(3→1)-xylopyranoside (lavaloside) (1) and the known compound phellamurin (2) were isolated from leaves of Phellodendron lavallei. The structures of the flavanone glycosides were elucidated using chemical transformations and UV, PMR, and 13C NMR spectroscopy combined with HSQC, HMBC, COSY, and DEPT experiments and mass spectroscopy.
新发现的黄酮醇苷(2S,3S)-3,5-二羟基-2-(4'-羟基苯基)-8-(3-甲基丁-2-烯-1-基)-4-氧代-3,4-二氢-2H-色烯-7-基-β-D-吡喃葡萄糖基-(3→1)-吡喃木糖苷(lavaloside)(1)以及已知化合物黄柏苷(phellamurin)(2)是从黄檗属植物Phellodendron lavallei的叶子中分离得到的。这些黄酮苷结构的阐明是通过化学转化以及结合使用紫外光谱、质子磁共振(PMR)、碳-13核磁共振(13C NMR)光谱,配合高分辨异核单量子相干(HSQC)、异核多键相关(HMBC)、化学位移相关(COSY)和质子排除技术(DEPT)实验,以及质谱分析完成的。