共查询到20条相似文献,搜索用时 90 毫秒
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薰衣草化学成分的研究 总被引:1,自引:0,他引:1
采用各种柱色谱方法对新疆产薰衣草花的95%乙醇提取物的化学成分进行分离纯化, 分离得到9个化合物, 根据理化性质和光谱数据分别鉴定为5'-β-D-glucopyranosyloxyjasmonic butyl ester (1), 5'-β-D-glucopyranosyloxyjasmonic acid (2), dichotomoside E (3), 丁二酸(4), 咖啡酸(5), 3-甲氧基-4-O-β-D-葡萄糖苷-阿魏酸(6), β-谷甾醇(7), 熊果酸(8), 胡萝卜苷(9). 其中化合物1为新化合物, 化合物2~9均为首次从薰衣草中分离得到. 相似文献
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墓头回挥发油化学成分的研究 总被引:4,自引:0,他引:4
墓头回也叫箭头风,为败酱科植物异叶败酱[Patrinia Heterophylla Bge.]和糙叶败酱[PatriniuScabra Bge.]的根,能治伤寒、温疟,妇女崩中,赤白带下,跌打损伤等疾病,对艾氏癌细胞有抑制及伤害作用。墓头回挥发油的化学成分尚未见报道。本文采用毛细管气相色谱-质谱法对墓头回挥发油的化学成分进行了研究。色谱分离出50多个组分,质谱确定了其中30个组分的化学成分,占总色谱流出峰面积的56.32%。此外还有10个结构尚未完全确定的倍半萜烯,占色谱总流出峰面积的8.50%;3个倍半萜烯醇,占色谱总流出峰面积的4.71%;2 相似文献
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Xiao Hua XU* Chang Jian LIN Jian Hua LU Guang Min YAO Yan Ming LI Institute of Elemento-Organic Chemistry Nankai University Tianjin 《中国化学快报》2002,13(10)
The alga Caloglossa leprieurii is a chinese traditional drug having been used as anthelmintic, from the alga Caloglossa leprieurii, we had isolated two novel metabolites and three known compounds1-2. Further efforts to study this genus systematically made us to obtain a novel bromo-sesquiterpene 1 from Caloglossa leprieurii collected from the XiSha islands in south China sea. The EtOH extract of the alga Caloglossa leprieuri was partitioned between EtOAc and H2O, and the resulted organi… 相似文献
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狗枣猕猴桃叶化学成分研究 总被引:2,自引:0,他引:2
从狗枣猕猴桃叶中分离得到7个黄酮类化合物, 经1D NMR, 2D NMR和MS等波谱分析, 鉴定它们的化学结构分别为山柰甲黄素-3-O-芸香糖苷(Ⅰ)、 山柰甲黄素-7-O-(4"-O-乙酰基鼠李糖基)-3-O-β-D-吡喃葡萄糖苷(Ⅱ)、山柰甲黄素-7-O-(4"-O-乙酰基鼠李糖基)-3-O-芸香糖苷(Ⅲ)、山柰酚-3-O-β-D-葡萄糖苷(Ⅳ)、山柰酚-3-O-芸香糖苷(Ⅴ)、山柰甲黄素-3-O-β-D-葡萄糖苷(Ⅵ)和山柰甲黄素-7-O-鼠李糖基-3-O-芸香糖苷(Ⅶ). 其中化合物Ⅰ, Ⅱ和Ⅲ为新化合物, Ⅳ, Ⅴ和Ⅵ为首次从该植物中分离得到. 相似文献
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XU Xiaohua YAO Guangmin LU Jianhua LI Yanming CHANG Jianglin KONG Chuihua 《高等学校化学研究》2002,18(2):226-227
Two brominated-sesquiterpenes were isolated from the Alga Laurencia majuscula collected from the Xisha Islands in the South China Sea. Compound 1 was first reported, and determined, on spectral evidence, to be 8-bromo-l-en-chamigrene. 相似文献
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运用对流-扩散模型研究了流动注射分析系统中的化学动力学,基于无化学反应时试样分散的浓度分布公式,运用数学归纳法导出了在一定条件下一级和二级反应的产物浓度分布公式,所得解析解便于计算机模拟产物生成曲线。解释了双峰的产生,并讨论了相关的动力学信息。 相似文献
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XU Xiao hua * YAO Guang min LU Jian hua LI Yan ming CHANG Jiang linInstitute of Elemento Organic Chemistry Nankai University Tianjin P.R. ChinaKONG Chui huaInstitute of Tropic Subtropical Ecology South China Agriculture Unive 《高等学校化学研究》2002,(2)
IntroductionTheredalgaofgenusLaurenciaiswell knowntobeusedtoproduceterpenoidsandC15acetogeni ue[1— 3] .WeinvestigatedthetropicalredalgaLau renciamajuscula ,colletedfromtheXishaIslandsintheSouthChinaSea ,andisolatednaturallyoccurringtricyclesesquiterpene ,poly… 相似文献
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Introduction Jujuba is the fruit of Zizyphus genus(Rhamnaceae) which has been used as a crude drug. Now quite a lot of botanists, chemists and pharmacologists at home and abroad have been deeply interested in the studies on it. Besides the studies on its fruit, a great deal of research work on its other parts has been done So far more 相似文献
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