Chemical constituents from Xylosma controversum

南岭柞木化学成分(英文)

Aim To study the chemical constituents from the stems of Xylosma controversum Clos. Methods The constituents were isolated by solvent extraction, repeated chromatography with silica gel, Sephadex LH-20, and RP-18 columns. The structures were elucidated by spectral analysis. Results Thirteen compounds were isolated and their structures were identified as （-）-syringaresinol （1）, syringaresinol-4-O-β-D-glucopyranoside （2）, syringaresinol-4,4′-bis-O-β-D-glucopyranoside （3）, （±）-catechin （4）, catechin-3-O- β-D-glucopyranoside （5）, catechin-5-O-β-D-glucopyranoside （6）, 1,3-bis-（4-hydroxy-3,5-dimethoxyphenyl）-1,3-propanediol （7）, （R）-（＋）-chaulmoogric acid （8）, friedelin （9）, uracile （10）, benzoic acid （11）, vaniUic acid （12）, and 4-hydroxybenzoic acid （13）. Conclusion All the compounds described above were isolated from this genus for the first time.

目的对南岭柞木Xylosma controversum Clos茎的化学成分进行研究。方法应用各种色谱方法分离,应用波谱技术确定结构。结果分离鉴定了13个化合物,分别是:(-)-丁香树脂酚(1),丁香树脂酚-4-O-β-D-葡萄糖苷(2),丁香树脂酚-4,4'-O-β-D-双葡萄糖苷(3),(±)-儿茶素(4),儿茶素-3-O-β-D-葡萄糖苷(5),儿茶素-5-O-β-D-葡萄糖苷(6),1,3-bis(4-hydroxy-3,5-dimethoxyphenyl)-1,3-propanediol(7),(R)-(+)-大风子油酸(8),木栓酮(9),尿嘧啶(10),苯甲酸(11)香草酸(12),对羟基苯甲酸(13)。结论以上化合物均为首次从柞木属植物中分离得到。