糖苷的

The hydrolysis was extracted with ethyl ether and concentrated, analyzed and determined with GC/MS.

为了研究不同的加工工艺对茶鲜叶香气和糖苷类香气前体的的影响，利用槠叶种群体的一芽二、三叶鲜叶为原料，按照传统的加工工艺分别制成红茶、绿茶，应用SDE提取、GC/MS对香气组成进行分析，同时应用溶剂提取、双相酶解和GC/MS对糖苷类香气前体物质进行系统分析。

As in disaccharides, these units are held together by glycoside linkages, which can be broken by hydrolysis.

例如二糖中的单糖单元通过糖苷键连接，这种键会经水解而断裂。

This kinds of compounds were confirmed by their ~1H-NMR,~(13)C-NMR and mass spectrum.

所得的一系列新的烷基呋喃脱氧戊糖苷经过核磁共振氢谱、碳谱及质谱分析后确定了这些新的糖苷衍生物。

Glycoalkaloids are important natural products. In this paper, the extraction, isolation and decoloration of glycoalkaloids from the sprouts of potatoes Solanum tuberosum L.

摘要糖苷生物碱是一类重要的天然产物，本文对马铃薯芽中的糖苷生物碱进行了提取、分离以及脱色素的研究。

Quercetin, quercetin rhamnoside, hyperin, syringoside and eleutheroside E wereisolated from the flower of Acanthopanax senticosus. Searching bioactive natural compound and establishing quality evaluation standard arefocused on this experiment. Using cold immersing of 70% methanol to extract from flower ofAcanthopanax senticosus and integrating macroporous resin, silica gel column chromatography,sephadex gel to abstract. We obtained five monomer compounds (compoundⅠ-compoundⅤ),quercetin, quercetin rhamnoside, hyperin, syringoside and eleutheroside E. That five compoundswere determined by HPLC in eight parts of Acanthopanax senticosus (flower, root, leaf fruit,shoot, new shoot, phloem of shoot, skin of shoot), which provide science bases for establishingquality evaluation system and settle infarctate foundation.

本文以从刺五加花蕾中寻找具有重要生物活性的天然化合物和建立质量评价标准为主要目的，对其化学成分进行研究，采用70％甲醇冷浸的方法对刺五加花蕾中的成分进行提取，运用大孔树脂吸附色谱法、硅胶柱层析法以及葡聚糖凝胶柱层析相结合的方法进行分离，得到5种单体化合物，分别为槲皮素、槲皮素鼠李糖苷、金丝桃苷、紫丁香苷和刺五加苷E；利用高效液相色谱法对这5种化合物在刺五加花蕾中的含量进行了测定；考察了8个部位(花蕾、根、叶、果、茎干、新枝、茎韧皮部、茎皮)中这5种化合物的含量分布情况，并作一比较，为今后建立刺五加质量评价体系提供了科学依据，奠定了坚实的基础。

In this paper, the structures and the synthesis methods of glycosyl isothiocyanates are summarized, including the application as intermediates in the preparation of glycosylthioureas, glycosylheterocycles, glycosylguanidins and glycosylconjugates and so on.

本文对糖基异硫氰酸酯的结构、制备方法，以及作为中间体在糖基硫脲、糖基杂环、胍基糖苷、糖基缀合物等重要化合物的合成中的应用作了较详尽阐述。

ABSTRACT AIM: In order to find new type of antitumor compounds and study the contribution of hydroxyl groups on the sugar part to the antitumor activity of 8-Cl-adenosine, the retinoid analogs of adenosine and the derivatives of 8-Cl-adenosine were synthesized.

目的： 为寻找新型抗肿瘤化合物和探讨糖环羟基对8-Cl-腺苷的抗肿瘤活性的影响，合成了腺苷的维甲类似物和8-Cl-腺苷衍生物。

Benzoylated phenyl a - and B - 2 - thio - D - fructofuranosides were synthesized and coupled with protected sucrose acceptor to synthesize a - D - fructofuranoside - linkage stereospecifically by employing NIS/AgOTf as catalysts.

在果糖的合成研究中，合成了四苯甲酰基苯基果糖硫苷，并首次将其用作糖苷化反应的给体，在NIS/AgOTf的促进之下，与乙酰化保护的蔗糖受体反应，从而以高产率立体专一地合成了α构型的呋喃果糖苷。

The 1062 amino acid sequence deduced from the 6A8 cDNA ORF is highly homologous to that of a rat ERalpha-mannosidase and that of a vacuolar alphamannosidase of Saccharomyces cerevisiae.

6A8 cDNA编码的蛋白质的氨基酸序列与大鼠的ER α-甘露糖苷酶高度同源，相同性和相似性分别高达78％和82％，与酵母α-甘露糖苷酶的相同性和相似性亦达到33％和47％。

Adenosine A nucleoside formed from adenine linked to Dribose with a glycosidic bond.

腺苷：腺嘌呤与 D-核糖以β－糖苷键结合形成的核苷。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。