乙酰

RESULTSPiperazin1yl 2(1pyridin2ylethoxy) acetamide has effects for ability of memory in mice.

结果］2［1（2吡啶）乙氧基］乙酰取代哌嗪具有促进小鼠记忆力的作用。

ABSTRACT:OBJECTIVETo synthesis the 4substitued piperazin1yl 2(1pyridin2ylethoxy) acetamide and study its effects for ability of memory in mice.

［目的］合成2［1（2吡啶）乙氧基］乙酰4取代哌嗪，探讨其对小鼠记忆力的影响。

Two compounds were isolated from ethyl acetate extract of the fermentation of fungus 07-11,which obtained from the soil of Yunnan Province. They were identified as N-(4-hydroxy-2-methoxyphenyl)acetamide (1) and ergosta-7,22-diene-3,6-dione (2) respectively on the basis of spectral analyses and physical and chemical identifications.

从云南土壤真菌07-11号菌株的发酵液乙酸乙酯萃取物中分离得到2个化合物，通过理化鉴别和光谱测定，鉴定两化合物分别为N-(4-羟基-2-甲氧苯基)乙酰胺(1)和麦角甾7，22-二烯-3，6-二酮(2)。

Citrate synthase plays a key role in regulating TCA cycle and is responsible for catalysing the synthesis of citrate from oxaloacetate and acetyl CoA.

柠檬酸合成酶在TCA循环中起着关键的调节作用，它催化乙酰辅酶A与草酰乙酸缩合成柠檬酸。

Our method featured employing the glycosyl donor with Bz as the protectivegroups and 0.05 equiv of TMSOTf as the promoter.

即：用苯甲酰基保护的三氯乙酰亚胺酯作给体，用5％当量的TMSOTf作促进剂，在室温下反应5min至15min。

Our method featured employing the glycosyl donor with Bz as the protective groups and 0.05 equiv of TMSOTF as the promoter.

即：用苯甲酰基保护的三氯乙酰亚胺酯作给体，用 5%当量的 TMSOTf 作促进剂，在室温下反应 5 min 至 15 min。

The invention adopts halogen acetylized crosslinked polystyrene resin and hydroxybenzyl alcohol as the raw material, and the solid phase synthesis carrier with hydroxymethyl as the active group is synthesized through the joint catalysis of N, N-dimethyl formamide used as the reaction solvent, inorganic base and phase-transfer catalyst.

本发明采用卤乙酰化交联聚苯乙烯树脂和对羟基苯甲醇为原料，在以N，N-二甲基甲酰胺为反应溶剂、无机碱及相转移催化剂的共同催化下合成了一种以羟甲基为活性基团的固相合成载体。

In the first part, a high performance anionexchange chromatography for simultaneous determination of four artificial sweeteners (sodium saccharin, aspartame, sodium cyclamate and acesulfame-K) and citric acid was proposed.

第一部分提出了一种采用高效阴离子交换色谱法同时测定四种人工合成甜味剂（糖精钠、天门冬酰苯丙氨酸甲酯、环己基氨基磺酸钠、乙酰磺胺酸钾）和柠檬酸的新方法。

Methods Synthesis 3-O-carbamylnoviose and 3-acetamido-7-hydroxycoumarin, compare the activity of inhibit K562 cell with novobiocin by MTT.

合成新生霉素的结构单元3-O-氨基甲酰基诺维糖（化合物2）和3-乙酰氨基-7-羟基香豆素（化合物3），MTT法测定两化合物与新生霉素抗K562细胞的活性。

The Sm or Yb complexes were tested to be used as a catalyst for the Diels-Alder reaction of cyclopentadiene with methyl acrylate.

用α-亚磺酰基-N，N-二取代乙酰胺同三氯化钐和三氯化镱反应得到了相应的稀土配合物，用元素分析、红外光谱进行了结构表征。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。