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作 者:冯峰[1,2] 宋启示[2] 杨剑坤[3] 胡祖艳[2] 范青飞[2] 李蓉涛[1] 张玉梅[2]
机构地区:[1]昆明理工大学生命科学与技术学院,云南昆明650500 [2]中国科学院西双版纳热带植物园,热带植物资源可持续利用重点实验室,云南昆明650223 [3]云南省环境科学研究院,云南昆明650034
出 处:《时珍国医国药》2014年第12期2826-2827,共2页Lishizhen Medicine and Materia Medica Research
基 金:云南省中青年学术技术带头人后备人才项目(No.2010CI048);国家自然科学基金(No.20972168)
摘 要:目的研究傣药木棉树皮中的化学成分。方法采用85%丙酮水提取,硅胶柱、反向C-18柱及凝胶柱等柱层析方法从木棉树皮中分离化学成分,并通过MS和NMR等波谱学方法进行结构鉴定。结果分离得到5个化合物,分别为eriodictyol(1)、(2S,3R,4E,8Z)-3-hydroxy-2-((2R)-2-hydroxyoctadecanoylamino)-l-β-D-glucopyranosyloxy-4,8-octadiene(2)、β-sitosterol laminaribioside(3)、2,6-dimethoxybenzoquinone(4)和p-hydroxybenzoic acid(5)。结论此5个化合物均为在该植物中首次分离得到,活性测试结果显示木棉树皮85%丙酮水提取物在体外人肿瘤细胞株Hela上具有一定细胞毒活性,其IC50值为21.30μg/ml。Objective To study the chemical constituents of the barks of Bombax malabaricum. Methods SiO2, Rp - C18 and Sepadex LH - 20 column chromatography techniques were applied for the isolation and purification of the 85% acetone/water ex- tract of the barks of Bombax malabaricum. The structures were mainly elucidated by spectral methods (MS and NMR). Results - Five compounds were isolated and identified as eriodietyol (1), (2S,3R,4E,8Z) -3 -hydroxy- 2 - ((2R) -2 -hydroxyocta- decanoylamino) - 1 - β - D - glucopyranosyloxy - 4,8 - octadiene ( 2 ) , [3 - sitosterol laminaribioside ( 3 ) , 2, 6 - dimethoxy- benzoquinone (4) and p - hydroxybenzoic acid ( 5 ). Conclusion All the five compounds ( 1 - 5 ) were isolated from this species for the first time, and the 85% acetone/water extract showed cytotoxieity against human cancer cell line Hela with an IC50 value of 21.30 μg/ml. Key words:Bombax malabaricum; Chemical constituents
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