波谱

The studies on the secondary metabolites of the fungi revealed that w-90 can produce ursolic acid which was originally found in the plant Plantago major L.

采用现代的分离和波谱技术，对其次级代谢产物进行了深入的研究，发现它能产生车前草的主要有效成分乌苏酸。

Two compounds have been isolated from hard coral Porites Compressa Dana,their structures were determined by IR,MS, HNMR, 13CNMR analysis.The two compounds are: batyl alcohol,(2) N-[l--2-hydroxyl--3,7-heptadecadienal]- h exadecanamide.

从采自西沙群岛的扁缩滨珊瑚中的石油醚部分分离出两个化合物，经IR、MS、~1HNMR、~(13)CNMR等波谱方法鉴定，其结构分别为(1)鲨肝醇，(2)N-1-羟基甲基-2-羟基--3，7-十七碳二烯基十六酸酰胺。

Healthy adults ; Chinese ; precentral gyrus ; proton magnetic resonance spectroscopy

健康成人；中国；质子磁共振波谱；中央前回

A series of pyridazino[3,2-c]1,2,4-triazoles were synthesized from hydrazides and 3-aryl-6- chloro pyridazine s (3a～3d), which were obtained from substituted benzene and succinic anhydride by Friedel-Crafts reaction, cyclization with hydrazine hydrate, dehydrogenation and chloro-substitution.

以取代苯和丁二酸酐为起始原料，经Friedel-Crafts反应，肼合环，Br2/HOAc氧化脱氢后得到一系列1，6-二氢-3-芳基-6-哒嗪酮(2a～2d)。然后将2a～2d与PCl5在POCl3中回流，得到相应的氯代产物3a～3d，将其与酰肼作用，合环后得到一系列未见报道的哒嗪并[3，2-c]1，2，4-三唑类化合物。所有化合物结构均经元素分析，IR，1HNMR和MS谱得以证实，并对其波谱性质进行了讨论

Methods Compounds were isolated and purified by various column chromatographic techniques and their structures were elucidated on the basis of spectral analysis (IR, ESIMS, 1HNMR, 13CNMR). The inhibitory activity against the proliferation of HL60, REH and Raji cell lines was determined by using MTT assay.

用色谱方法分离栀子中化学成分，用波谱技术(IR，ESIMS，1HNMR，13CNMR)进行结构鉴定，用四唑盐比色法测定化合物对白血病细胞（HL60人早幼粒细胞白血病、REH人急性淋巴细胞白血病、 Raji淋巴瘤）增殖的影响。

Coumarinyloxy)-6-methoxyl-7-hydroxycoumarin,β-sitosterol, 3-stigmast-5-en-3- 3 -D-Glucopyranoside . 3-(7-coumarinyloxy)-8-(7-hydroxycoumarin-8-yl)-7-hydroxycoumarin rhamnoside and Sucrose. Compound I , V, IX and XI were isolated from barks and stems of this plant for the first time and compound VI and VI were isolated from flowers of this plant for the first time, too.

共鉴定了其中11个化合物，根据理化性质和波谱数据鉴定确定为：丁香甙，结香甙C(Edgeworoside C Ⅱ)，7-羟基香豆素(7-hydroxycoumarin Ⅲ)，5，7-二甲氧基香豆素(5，7-dimethoxycoumarin Ⅳ)，卫矛醇，异吲哚-1，3-二酮1H-iso-Indole-1，3(2H-dione Ⅵ，西瑞香素(Daphnoretin Ⅶ)，β-谷甾醇(β-sitosterol Ⅷ)，胡萝卜甙(Daucosterol Ⅸ)，结香甙A(Edgeworoside A Ⅹ)和蔗糖。

An overview of Rubiaceae commonly used medicinal plants in 28 kinds of triterpenoid components and spectral characteristics of the structure.

综述了茜草科常用药用植物中28种三萜类成分的结构及其波谱特征。

An overview of Rubiaceae commonly used medicinal plants in 28 kinds of triterpenoid components and spectral characteristics of the structure.

综述了茜草科常用药用植物中28种三萜类成分的结构及其波谱特征。论文发表-发表论文-发表文章-论文写作-权威期刊C ZvOyKK$AH

METHODS: Separating the constituents of Schisandra chinensis using various kinds of chromatography and identifying their structures on the basis of spectral analysis.

用各种色谱方法分离北五味子的化学成分，用波谱技术鉴定结构。

They have been structurally characterized and their spectroscopic behaviors are studied .

对这些配体化合物的波谱行为进行了研究，并做了X-射线晶体结构的测定。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。