【摘 要】
：
Objective To study the chemical constituents of Rhodiola kirilowii.Methods The compounds were separated and purified by various chromatographic techniques and t
【出 处】
：
Chinese Herbal Medicines
论文部分内容阅读
Objective To study the chemical constituents of Rhodiola kirilowii.Methods The compounds were separated and purified by various chromatographic techniques and their structures were elucidated on the basis of physicochemical properties and spectroscopic methods.Results Five compounds were purified and their structures were identified as 4-(β-D-glucopyranosyloxy)-3-hydroxy-2-(hydroxymethyl)-butanenitrile(1),epicatechin(2), arbutin(3),rutin(4),andβ-D-glucose(5).Conclusion Compound 1 is a new cyano-compound and other compounds are isolated from the plant for the first time.
Objective To study the chemical constituents of Rhodiola kirilowii. Methods The compounds were separated and purified by various chromatographic techniques and their structures were elucidated on the basis of physicochemical properties and spectroscopic methods. Results Five compounds were purified and their structures were identified as 4- ( β-D-glucopyranosyloxy) -3-hydroxy-2- (hydroxymethyl) -butanenitrile (1) epicatechin (2) arbutin (3) rutin (4) a new cyano-compound and other compounds are isolated from the plant for the first time.
其他文献
氯硝西泮抗惊厥作用耐受性及其影响因素北京医科大学第一医院儿科（北京１０００３４）廖建湘，王丽，左启华氯硝西泮在抗癫痫治疗过程中，效价强度逐渐下降，即诱发耐受性，限制其使用。我们用动物实验
由于目前我国财政收入的90%来自税收,税改是否会带来税收收入的减少,就成为考量是否悦改和推出时机的决定性因素,因为减税将可能直接导致财政收入的下降,而现有的财政收入已
目的 探讨慢性前列腺炎病人的心理健康状况及影响疾病转归的生物-心理-社会因素.方法采用心理卫生自评量表(BCL-90)、焦虑自评量表(SAS)、抑郁自评量表(SDS)和相关因素调查表按2:1匹配对200例慢性前列腺病人的心理状况及相关因素进行对照研究.结果慢性前列腺炎病人心理问题的发生率为21%,极显著的高于对照组.蓝领职业、文化程度低、经历负性生活事件、婚姻不满意及病情复杂、症状严重者的心理问题
随着市场经济的发展，企业之间的竞争越来越激烈，一部分企业生产经营因此受到限制，有的濒临倒闭。我省某棉纺厂就是一个现实的例子。该厂共有6个生产车间，由于多种原因，只有4个车间
Senegenin,an effective component of Polygala tenuifolia root extract,promotes proliferation and differentiation of neural progenitor cells in the hippocampus.Ho
张煜 欧阳先生，您的研究领域很广，成就是多方面的。我知道您早年随奚啸伯先生学戏，后来上辅仁大学和北京大学哲学系，师从金岳霖先生学习逻辑，教过小学、中学、大学，长期从事书学研究和教育，在全国高校当中率先建立起从本科到博士后的完整的书学人才培养体系，目前又在致力于汉字认知研究。今天我受《文艺研究》委托，想就这样几个问题向您请教。
Objective To investigate the protective effects of purified effective component group in extract from Xiaoshuan Tongluo(CGXT) formula on chronic brain ischemia
This study showed that abnormal behavioral changes were greatly improved in rats displaying Parkinson’s disease-like symptoms after intragastric administration
本文研究甲氨喋呤（ＭＴＸ）对小鼠及大鼠的毒性和药动学参数的昼夜变化，并探讨了两者的关系。ＭＴＸ毒性和药动学均与昼夜用药时间相关，明期用药毒性高，血药浓度曲线下面积大，清除率低；暗期用药相
盐酸苯环壬酯分成２．５、１２．５和６２．５ｐｐｍ３个浓度组，溶于自来水中，供孕鼠从妊娠ｄ１５开始至断乳时饮用。结果显示，在相当于人临床用量１５～７５倍剂量范围内，该药对小鼠胚胎后期生长发育、母鼠分娩、哺乳及新生小鼠