糖苷的

Pteroside P′(1) was identified to be a new C14 sesquiterpene glycoside; luteolin, palmitic acid and apigenin 4′-O-α-L-rhamnopyranoside may be the main active components of Pteris multifida against benign prostatic hypertrophy.

化合物pteroside P′(1)是一个新的C14的倍半萜苷；化合物木犀草素、棕榈酸和芹菜素4′-O-α-L-鼠李糖苷可能是凤尾草能抑制良性前列腺增生的主要活性成分。

Results Five compounds were isolated and their structures were identified as crenatoside (1),torachrysone(2), emodin(3),emodin-1-O-β-D-glucopyranoside(4) and β-sitosterol(5) respectively.

结果从黄药地上部分的95%乙醇提取物的乙酸乙酯部分中分离得到了5个化合物：黄药苷(1)、torachrysone(2)、大黄素(3)、大黄素-1-O-β-D-葡糖苷(4)和β-谷甾醇(5)。

Results Five compounds were isolated and their structures were identified as crenatoside (1), torachrysone (2), emodin (3), emodin-1-O-β-D-glucopyranoside (4) and β-sitosterol (5) respectiely.

结果 从黄药地上部分的95%乙醇提取物的乙酸乙酯部分中分离得到了5个化合物：黄药苷(1)、torachrysone(2)、大黄素(3)、大黄素－1-O-β-D-葡糖苷(4)和β-谷甾醇(5)。

The invention relates to the synthesis of N-aryl group-3-(4-Beta-D-pyran allose glycoside phenyl)-5-formyl isoxazole-4-formamide and discloses a helicid derivative which can improve the functions of a central nervous system and the preparation method thereof; wherein, the compound has good sedative, hypnotic and anti-convulsant effects and is taken in the 2000 edition Chinese Pharmacopoeia with the drug name of helicid tablets.

N-芳基-3-(4-β-D-吡喃阿洛糖苷苯基)-5-甲酰基异唑-4-甲酰胺的合成，发明公开了具有改善中枢神经系统功能的豆腐果苷类衍生物，及其制备方法。该类化合物具有良好的镇静、安眠、抗惊厥作用。目前已以药品名&神衰果素片&被收入2000年版《中国药典》。

Green tea contains a number of flavonols with the basic structure Specific flavonols found in tea include myricetin (hydroxyls at carbon 3', 4', and 5'), quercetin (hydroxyls at positions 3' and 4'), and kaempferol (hydroxyl at position 4'), and their glycosides.

绿茶含有一些黄酮醇，其基本化学结构为：茶中特有的黄酮醇有杨梅黄酮(3'、4'、5'碳位上羟基化)、豕草花粉苷(3'和4'碳位上羟基化)，莰非醇(4'碳位上羟基化)，以及它们的糖苷物。

Furthermore, a series of triterpene glycosides that composed of oleanolic acid, ursolic acid and glucosamine oligosaccharides were synthesized, and their structures were determined.

本文还以具有良好生物活性的五环三萜类的化合物齐墩果酸与熊果酸作为苷元，完成了一系列氨基葡萄糖及其寡糖三萜皂苷的合成和结构确定工作，为测试其生物活性、研究构效关系奠定了基础。

This is transformed into anomeric acetates 16, which is used for the synthesis of a number of 2＇, 3＇-dideoxy-2＇-trifluoromethylnuclosides via Vorbruggen glycosylation reaction. At the same time, L-2-tifluoromethyl-4-thiofuranosides 39 were also prepared from the key intermediate lactone.

从这一砌块出发，经由关键中间体2-三氟甲基-γ-丁内酯转化得到的化合物16的Vorbruggen糖苷化反应，合成了2＇，3＇-双脱氧-2＇-三氟甲基嘧啶核苷。

Glycosidic bond A bond formed between monosaccharides by removal of water.

糖苷键：单糖间脱掉一分子水后形成的一种键。

Polysaccharide A polymer of 10 or more monosaccharides joined by glycosidic links.

多糖：由10个或多个单糖通过糖苷键连接起来的聚合物（参见 glycoside ）。

The best characterized member of this latter group is a rhamnose-glucose-IAA glycosidic complex.

后一类物质中最有特征性的成份是鼠李糖-葡萄糖-IAA糖苷复合物。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。