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1.
苦苣菜的化学成分   总被引:30,自引:1,他引:30  
目的:研究苦苣菜的化学成分.方法:利用各种色谱技术进行分离纯化,根据化合物的理化性质和光谱数据进行结构鉴定.结果:分离得到10个化合物,分别为:木犀草素(luteolin,Ⅰ)、木犀草素-7-O-β-D-葡萄糖苷(luteolin-7-O-β-D-glucoside,Ⅱ)、芹菜素(apigenin,Ⅲ)、芹菜素-7-O-β-D-葡萄糖醛酸甲酯(apigenin-7-O-β-D-glucuronide methyl ester,Ⅳ)、芹菜素-7-O-β-D-葡萄糖醛酸乙酯(apigenin-7-O-β-D-glucuronide ethyl ester,Ⅴ)、芹菜素-7-O-β-D-葡萄糖醛酸苷(apigenin-7-O-β-D-glucopyranuronide,Ⅵ)、3β-acetoxy-olean-18-ene,germanicolacetate(germanicyl acetate,Ⅶ)、3β-hydroxy-6β,7α,11β-H-eudesm-4-en-6,12- olide(Ⅷ)、齐墩果酸(oleanolic acid,Ⅸ)和正二十六烷醇(1-cerotol,Ⅹ).结论:化合物Ⅳ~Ⅵ、Ⅷ、Ⅹ均为首次从苦苣属植物中分得.  相似文献   

2.
裸花紫珠化学成分研究   总被引:1,自引:0,他引:1  
[目的]对裸花紫珠Callicarpa nudiflora Hook.et Arn的化学成分进行研究.[方法]采用正、反相硅胶,Sephadex LH-20,HP-20、大孔树脂等柱色谱技术进行分离纯化,综合运用光谱及核磁共振技术结合化学反应鉴定化合物结构.[结果]分离并鉴定了12个化合物,分别为齐墩果酸(1)、熊果酸(2)、5,4′-二羟基-3,7,3 ′-三甲氧基黄酮(3)、木犀草素(4)、芹菜素(5)、8-乙酰基哈帕苷(6)、6-氧-香草酰筋骨草苷(7)、木犀草素-7-O-β-D-葡萄糖苷(8)、芹菜素-7-O-β-D-葡萄糖苷(9)、木犀草素4′-O-β-D-葡萄糖苷(10)、阿克苷(11)、连翘酯苷(12).[结论]2个环烯醚萜化合物8-乙酰基哈帕苷(6)和6-氧-香草酰筋骨草苷(7)为首次从紫珠属中分离得到.  相似文献   

3.
目的 研究苏门白酒草的化学成分。方法 运用溶剂萃取、硅胶和聚酰胺柱色谱、重结晶等方法分离纯化,并通过核磁共振谱鉴定化合物的结构。结果 从苏门白酒草中分离鉴定了12个化合物:芹菜素-7-O-β-D-葡萄糖醛酸苷-6″-甲酯(Ⅰ)、芹菜素-7-O-β-D-葡萄糖醛酸苷(Ⅱ)、金圣草黄素-7-O-β-D-葡萄糖醛酸苷-6″-甲酯(Ⅲ)、金圣草黄素-7-O-β-D-葡萄糖苷(Ⅳ)、4′-羟基黄芩素(Ⅴ)、金合欢素-7- O-芸香糖苷(Ⅵ)、金圣草黄素(Ⅶ)、菠甾醇-3-O-β-D-葡萄糖苷(Ⅷ)、菠甾醇-3-O-β-D-葡萄糖苷-6′-O-棕榈酸酯(Ⅸ)、( 2S,3S,4R,8E)-8,9-二脱氢植物鞘氨醇(2′R )-2′-羟基二十二、二十三、二十四、二十五烷酰胺(Ⅹ)、天师酸(Ⅺ)、菠甾醇(ⅩⅡ)。结论 化合物Ⅰ~Ⅺ为首次从该植物中分离得到,化合物Ⅰ~Ⅶ和Ⅸ~Ⅺ为首次从白酒草属植物中分离得到。  相似文献   

4.
华东唐松草的化学成分   总被引:6,自引:0,他引:6  
目的:研究华东唐松草的化学成分,并探讨其化学分类学意义。方法:利用各种柱色谱方法,对华东唐松草全草乙醇提取物的正丁醇部位进行成分分离,并利用现代波谱手段对分离得到的化合物进行结构鉴定。结果:自华东唐松草的正丁醇部位分离鉴定了10个化合物,分别为2-(3-hydroxy-4-methoxyphenyl)-ethyl-O-β-D-glucopyranoside(1),皮契荔枝苷(2),xanthohypericoside(3),龙胆根黄素(4),芹菜素-7-O-β-D-葡萄糖苷(5),芹菜素-7-O-α-L-鼠李糖苷(6),木犀草素-7-O-β-D-葡萄糖苷(7),木犀草素-7-O-α-L-鼠李糖苷(8),2,4-二羟基苯乙酸甲酯(9)和正丁基果糖(10)。结论:化合物1~8均为首次从本属植物中分离获得。华东唐松草中含有的这些成分更接近耧斗菜族,可能为阐明唐松草属特殊的分类学地位提供化学成分上的依据。  相似文献   

5.
半边莲中黄酮类化学成分研究   总被引:6,自引:0,他引:6  
目的 对半边莲中的黄酮类成分进行研究.方法 使用稀醇进行提取,采用各种柱色谱法及重结晶法进行分离纯化,各种光谱、波谱技术进行结构鉴定.结果 分离得到9个黄酮类化合物,经鉴定为:芹菜素(1)、木犀草素(2)、香叶木素(3)、白杨黄酮(4)、橙皮苷(5)、木犀草素7-O-β-D-葡萄糖苷(6)、芹菜素7-O-β-D-葡萄糖苷(7)、蒙花苷(8)、香叶木苷(9).结论 所分离得到的9个黄酮类化合物均为首次从半边莲中分离得到.  相似文献   

6.
独一味化学成分的研究   总被引:11,自引:0,他引:11  
目的:研究独一味Lamiophlomis rotata (Benth.)Kudo.地上部分的化学成分.方法:利用各种色谱方法分离化学成分,通过理化性质和光谱方法确定所分离化合物的结构.结果:从正丁醇部位分离得到3个黄酮类和3个苯乙醇苷类化合物,经鉴定分别为木犀草素-7-O-β-D-吡喃葡萄糖苷(Ⅰ)、芹菜素-7-O-β-D-吡喃葡萄糖苷 (Ⅱ)、木犀草素-7-O-[β-D-呋喃芹菜糖(1→6)]-β-D-吡喃葡萄糖苷(Ⅲ)、forsythoside B(Ⅳ)、verbascoside(Ⅴ)、betonyosides A(Ⅵ).结论:化合物Ⅲ~Ⅵ均为首次从独一味中获得.  相似文献   

7.
[目的]对鹅不食草干燥全草乙醇提取物正丁醇部位的化学成分进行研究,为鹅不食草的系统研究和开发利用提供物质基础。[方法]通过大孔吸附树脂、Sephadex LH-20色谱、ODS柱色谱、薄层色谱和高效液相色谱等现代色谱分离手段对鹅不食草干燥全草的正丁醇部位化学成分进行系统分离,通过对其理化性质及谱学数据的分析,对分离所得化合物进行结构鉴定。[结果]从鹅不食草干燥全草95%乙醇和60%乙醇合并提取物中分离得到了化合物14个,分别鉴定为木犀草素-7-O-β-D-葡萄糖苷(1),槲皮素-3-O-β-D-葡萄糖苷(2),芹菜素-7-O-β-D-葡萄糖醛酸苷(3),nudicaucins A(4),guaiacin D(5),绿原酸(6),4,5-二咖啡酰奎宁酸-甲酯(7),对羟基苯甲酸(8),水杨酸(9),芥子酸(10),芥子酸甲酯(11),阿魏酸(12),咖啡酸甲酯(13),丁香酸(14)。[结论]化合物1~14均为首次从石胡荽属植物中分离得到。  相似文献   

8.
目的 研究新疆产沙戟全草的化学成分.方法 反复硅胶柱色谱,薄层色谱,凝胶柱色谱,波谱分析技术和理化常数对照.结果 分离得到12个化合物,分别鉴定为伞形花内酯(Ⅰ),七叶内酯(Ⅱ),东莨菪素(Ⅲ),秦皮素(Ⅳ),鼠李素(Ⅴ),槲皮苷(Ⅵ),芹菜素-7-O-β-D-葡萄糖苷(Ⅶ),秦皮苷(Ⅷ),木犀草素-7-O-β-D-葡萄糖苷(Ⅸ),山柰酚-3-O-β-D-芦丁糖苷(X),芹菜素-7-O-β-D-芦丁糖苷(Ⅺ)和芦丁(Ⅻ).结论 上述化合物均首次从沙戟属中分离得到.  相似文献   

9.
目的:研究枫香树叶的化学成分。方法:采用硅胶柱层析、凝胶柱层析、制备液相色谱等色谱方法进行分离,利用理化性质和波谱技术鉴定化合物结构。结果:从枫香树叶分离得到9个化合物,分别鉴定为:异槲皮苷(1),arjunglucosideⅡ(2),山柰酚-3-O-β-d-葡萄糖苷(3),hederagenin-28-O-β-D-glucopyranoside(4),木犀草素-4'-O-β-d-吡喃葡萄糖苷(5),杨梅树皮素-3-O-β-D-葡萄糖苷(6),槲皮素-3-O-(6″-没食子酰基)-β-d-葡萄糖苷(7),杨梅苷(8),金丝桃苷(9)。结论:化合物3-6为首次从枫香树叶中分离得到。  相似文献   

10.
从中药浮萍的正品紫萍的乙醇提取物中分离出4个黄酮化合物,经理化常数和光谱鉴定其结构,分别为芹菜素(apigenin)、木犀草素(luteolin)、芹菜素-7-O-葡萄糖苷(apegenin-7-O-glucoside)和水犀草素-7-O-葡萄苷(leuteolin-7-O-glucoside),它们是紫萍中的主要化学成分。  相似文献   

11.
FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…  相似文献   

12.
Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.  相似文献   

13.
In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.  相似文献   

14.
Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.  相似文献   

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目的 探讨猪肺磷脂注射液联合经鼻持续气道正压通气(NCPAP)对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性(CK-MB)的影响.方法 选取呼吸衰竭早产儿80例,分为观察组和对照组各40例.对照组采用NCPAP给氧治疗,观察组给予NCPAP给氧联合猪肺磷脂气管内给药.观察两组患儿治疗前及治疗12h、24 h后PaO2、PaCO2、血氧饱和度(SaO2)、pH的变化情况,检测治疗前及治疗5d后血清CK-MB水平;评估两组患儿的临床治疗效果.结果 两组患儿PaO2、PaCO2、SaO2、pH比较,差异均有统计学意义(P<0.05),其中观察组治疗后的PaO2、SaO2、pH均高于对照组,PaCO2则低于对照组.两组的PaO2、SaO2、pH均随观察时间延长而升高(P<0.05),PaCO2均随观察时间的延长而降低(P<0.05).观察组治疗有效率为87.5%,显著高于对照组的70.0% (P <0.05).治疗5d后两组患儿血清CK-MB水平均较前降低(P<0.05),且观察组明显低于对照组(P<0.05).结论 猪肺磷脂注射液气管内给药联合NCPAP可以显著降低呼吸衰竭早产儿CK-MB的含量,提高治疗有效率,起到很好的呼吸循环支持作用.  相似文献   

17.
Evidence obtained from randomized controlled trials (RCTs) has been generally accepted as the gold standard in the evaluation of clinical effectiveness. Readers need to understand the trial design, implementation, results, analysis and interpretation, so as to fully Jnderstand the results of RCTs. Thus, the investigators of RCTs have to report these items in a complete, accurate and clear manner. Since 1998, we have conducted several evaluations on the reporting quality of RCTs published in Chinese journals on traditional Chinese medicine (TCM) and results have shown that there is an urgent need for higher quality RCTs on TCM.  相似文献   

18.
Ankylosing spondylitis is a chronic and progressive disorder with inflammation mainly involving the central axis joints. It mainly affects the cervical spine and the lumbosacral area, with the pathogenesis closely related to the kidney and the Governor Vessel (GV). TCM holds that the syndrome is deficiency in origin and excess in superficiality, which is due to insufficiency of the kidney, deficiency of GV, and blocking of the channels with the invasion of exogenous evil, leading to poor circulation of qi and blood and malnutrition of the bones, muscles and joints. The TCM method of tonifying the kidney and strengthening GV to regulate circulation of qi and blood and check the arthralgia pain should be adopted, with the Kidney-Tonifying and GV Strengthening Decoction (益肾强督汤) prescribed.  相似文献   

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CHEMOTHERAPY playsa greatrolein the treat- ment of malignanttumors,especiallyingynecolo- gicalones.But inanticancerchemotherapy,leuko-cytopeniaisfrequentlytheprimarydose-limitingsideeffect factor.Moreover,cancersarefrequentlychemoresistantbe-causeof overexpressionof P-glycoprotein(P-gp), which isencodedby multidrugresistancegene (MDR1 ) and detectableinup to50% ofhuman cancersand renderscellsresistancetoanticancerdrugs.The safetyand potentialtherapeuticbenefitof mdr1 gene transferredto h…  相似文献   

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