The search for therapeutic agents that will provide the ground for man and an improvement in their quality of life is ceaseless. The nerol (cis-2,6-dimethyl-2,6-octadien-8-ol) is a monoterpene which can be found in va...The search for therapeutic agents that will provide the ground for man and an improvement in their quality of life is ceaseless. The nerol (cis-2,6-dimethyl-2,6-octadien-8-ol) is a monoterpene which can be found in various medicinal plants as Lippia spp and Melissa officinalis L. The objective of this study was to analyze the acute effect of nerol in the central nervous system (CNS) by performing behavioral tests in mice (open field, elevated plus-maze, light/dark and rota rod tests). We used male albino mice (Mus musculus), Swiss variety, adult with 2 month-old. The animals were divided into five groups (n = 8) for each experimental protocol, and they were administered intraperitoneally (i.p.), respectively, Tween 80 0.05% dissolved in saline solution 0.9%, nerol (30, 60 or 90 mg/kg) or diazepam (2 mg/kg). In the open field test, all groups treated with nerol showed a significant decrease in motor activity (number of crossings, rearings and groomings) when compared with vehicle group. In the elevated plus-maze test, nerol groups significantly increased the number of entries and time of permanence in the open arms when compared with vehicle group. In the light-dark test, nerol groups showed a significant increase the time of permanence in the room clear when compared with vehicle group. In the rota rod test, the groups treated with nerol didn’t show modification in time spent and number of falls in the revolving bar when compared with vehicle group. These results indicate a possible anxiolytic effect of nerol in mice.展开更多
文章建立了一种高效液相色谱方法对精油中常见的三种单萜化合物橙花醇、芳樟醇、香茅醇进行定性和定量分析,并进行了方法学验证。得到最佳色谱条件为:C18柱(4.6 mm i.d.×150 mm,5μm),以乙腈∶水=1∶1(v/v)为流动相,流速为1.0 m L/...文章建立了一种高效液相色谱方法对精油中常见的三种单萜化合物橙花醇、芳樟醇、香茅醇进行定性和定量分析,并进行了方法学验证。得到最佳色谱条件为:C18柱(4.6 mm i.d.×150 mm,5μm),以乙腈∶水=1∶1(v/v)为流动相,流速为1.0 m L/min,UV检测波长205 nm。同时验证了其精密度及方法的稳定性。结果表明,该方法灵敏度高,重复性好,方法学验证符合要求。进而采用此方法分析了玫瑰精油、柠檬精油、玫瑰香精、柠檬香精中三种单萜化合物的含量。展开更多
A mild and highly efficient synthesis of C7-C14 and C15-C21 fragments of epothilone B and D is described in which racemic C7-C14 fragment is prepared from nerol through four steps, and C15-C21 fragment is obtained fro...A mild and highly efficient synthesis of C7-C14 and C15-C21 fragments of epothilone B and D is described in which racemic C7-C14 fragment is prepared from nerol through four steps, and C15-C21 fragment is obtained from 1, 3-dichloroacetone, thioacetamide and propionaldehyde.展开更多
文摘Ferric chloride catalyzes the isomerization and cyclization of geraniol, linalool and nerol in acetonitrile giving a-terpineol in good to high yields.
基金funded by the National Council for Scientific and Technological Development(CNPq).Rivelilson Mendes de Freitas is a fellow of CNPq.
文摘The search for therapeutic agents that will provide the ground for man and an improvement in their quality of life is ceaseless. The nerol (cis-2,6-dimethyl-2,6-octadien-8-ol) is a monoterpene which can be found in various medicinal plants as Lippia spp and Melissa officinalis L. The objective of this study was to analyze the acute effect of nerol in the central nervous system (CNS) by performing behavioral tests in mice (open field, elevated plus-maze, light/dark and rota rod tests). We used male albino mice (Mus musculus), Swiss variety, adult with 2 month-old. The animals were divided into five groups (n = 8) for each experimental protocol, and they were administered intraperitoneally (i.p.), respectively, Tween 80 0.05% dissolved in saline solution 0.9%, nerol (30, 60 or 90 mg/kg) or diazepam (2 mg/kg). In the open field test, all groups treated with nerol showed a significant decrease in motor activity (number of crossings, rearings and groomings) when compared with vehicle group. In the elevated plus-maze test, nerol groups significantly increased the number of entries and time of permanence in the open arms when compared with vehicle group. In the light-dark test, nerol groups showed a significant increase the time of permanence in the room clear when compared with vehicle group. In the rota rod test, the groups treated with nerol didn’t show modification in time spent and number of falls in the revolving bar when compared with vehicle group. These results indicate a possible anxiolytic effect of nerol in mice.
文摘文章建立了一种高效液相色谱方法对精油中常见的三种单萜化合物橙花醇、芳樟醇、香茅醇进行定性和定量分析,并进行了方法学验证。得到最佳色谱条件为:C18柱(4.6 mm i.d.×150 mm,5μm),以乙腈∶水=1∶1(v/v)为流动相,流速为1.0 m L/min,UV检测波长205 nm。同时验证了其精密度及方法的稳定性。结果表明,该方法灵敏度高,重复性好,方法学验证符合要求。进而采用此方法分析了玫瑰精油、柠檬精油、玫瑰香精、柠檬香精中三种单萜化合物的含量。
基金the National Natural Science Foundation of China (No.20214),Ministry of Education Natural Science Foundation and Education Commission of Hubei Province
文摘A mild and highly efficient synthesis of C7-C14 and C15-C21 fragments of epothilone B and D is described in which racemic C7-C14 fragment is prepared from nerol through four steps, and C15-C21 fragment is obtained from 1, 3-dichloroacetone, thioacetamide and propionaldehyde.
