大叶鱼骨木茎的化学成分研究

Chemical constituents of the stems of Canthium simile were studied.Seven compounds were isolated from ethyl acetate extract of the stem,and their structures were elucidated by various spectroscopic methods.They were identified as syringic acid(Ⅰ),isovanillic acid(Ⅱ),Caruilignan D(Ⅲ),(3β)-28-Norlup-20(29)-ene-3,17-diol(Ⅳ),3,4-dimethoxy-2,4-hexadienedioic acid(Ⅴ),dibutyl phthalate(Ⅵ) and diisobutyl phthalate(Ⅶ).The seven compounds were isolated from this genus for the first time.

大叶鱼骨木茎的化学成分研究

对茜草科鱼骨木属大叶鱼骨木茎的化学成分进行了研究。从氯仿萃取部分分得7个化合物,经理化及光谱方法鉴定分别为:羽扇豆醇(Ⅰ),3-β-乙酰基齐墩果酸(Ⅱ),β-谷甾醇(Ⅲ),2,4-二羟基-3,6-二甲基苯甲酸甲酯(Ⅳ),2,6-二甲氧基苯醌(Ⅴ),β-胡萝卜苷(Ⅵ),香草酸(Ⅶ)。经文献检索,这7个化合物均为首次从该属植物中分得。

青梅和大叶鱼骨木提取浸膏的抑菌活性

目的测定青梅和大叶鱼骨木不同有机溶剂提取浸膏的抑菌活性。方法采用常规扩散法测定青梅和大叶鱼骨木的石油醚、氯仿、醋酸乙酯和正丁醇提取浸膏对大肠杆菌、金黄色葡萄杆菌、枯草杆菌、根霉和黑曲霉的抑制活性。结果在两种药物提取浸膏中,只有青梅醋酸乙酯浸膏和正丁醇浸膏以及大叶鱼骨木氯仿浸膏对这3种细菌有抑制活性,而所有浸膏对两种霉菌均没有抑制活性;同时,随着溶液浓度的增大其抑制效果也逐渐增强。结论青梅醋酸乙酯浸膏和正丁醇浸膏以及大叶鱼骨木氯仿浸膏对3种细菌有抑制活性,而所有浸膏对两种霉菌均没有抑制活性。