-噻唑烷

Based on the bioisosterism of malonate group with phosphate group, a series of barbiturate compounds and pyrazolidine-3, 5-dione compounds were designed and synthesized.

基于丙二酸是磷酸的生物电子等排体，我们设计了丙二酸的闭环结构的巴比妥酸及3，5-吡唑烷二酮类化合物。

Aim To design and synthesize 4-substituted piperazinylphenyloxazolidinone-indole carboxylate hybrids, and evaluate their antibacterial activities in vitro primarily.

目的 设计并合成一类新型的4-哌嗪苯基恶唑烷酮－吲哚羧酸酯杂合物，初步评价其体外抗菌活性。

The reactive activation energy and frequency factor of the co--curing resin system increase with enhanced concentration of cyanate.

在 氰酸酯适量和过量条件下，固化物交联结构主要是三嗪环和噁唑烷酮结构，聚醚结构很少。

In the excess of cyanate functional groups, the main structures are triazine ring and oxazolidone structure in the cured resin, and the polyether structure is of minor importance.

在氰酸酯欠量的条件下，固化物的交联结构主要是聚醚网络结构和噁唑烷酮结构，三嗪结构很少。

Then, N-for-aspartame was obtained from the reaction of 3-formyl-4-carboxymethyl-1,3-oxazolidine-5-one and L-phenylalanine methylester hydrochloric acid under sodium acetate anhydrous in ethyl acetate, and the target product was prepared after removing formyl in the mixture system of hydrochloric acid, methanol and water, the yield of aspartame reaches 89.2%.

最后，用3-甲酰-4-羰基口恶唑烷-5-酮乙酸与L-苯丙氨酸甲酯盐酸盐在溶剂中进行接肽反应，然后在甲醇/盐酸混合体系中进行脱甲酰保护基，从而得到最终目标产物，产率为89.2%。

Brain surgery,orthopedics, burn surgery and cardio-thoracic surgery. samples isolated from sputum were 32 strains, accounting for 47.1 percent; sanies 25 strains, accounting for 37.8 percent. secretion. the resistant rate of the isolated mrsa to nitrofurantoin,teicoplanin, linezolid and vancomycin is 0 percent.

其中，mrsa主要分布在icu、脑外科、骨科、烧伤科、心胸外科，分离自痰液标本32株，占总数的47.1%；脓液标本25株，占37.8%，分离出的mrsa对呋喃妥因、替考拉丁、力奈唑烷、万古霉素耐药率均为0%。

It's soil, however, after its problems, the crop was phytotoxicity very concern, according to chlorine sulfonylurea herbicide easily after long after stubbly maize produced in the problem, residual phytotoxicity chose herbicides security agents Ⅰ compounds, N - methylene chloride acetyl groups - 5-2 - diethyl - propyl arene pbo.

它的土壤残留问题及其对后茬作物的药害影响，一直是人们极为关注的问题，故本文针对除草剂氯磺隆使用后易对后茬玉米产生残留药害的问题，选择了除草剂安全剂化合物Ⅰ：N-二氯乙酰基-5-乙基-2-丙基-1，3-恶唑烷。

The second method dealt with the acylation of(2S)-1-amino-3-chloro-propanol Salts in the presence of triethylamine.

通过正交实验对该方法噁唑烷酮环形成反应的条件进行了优化。

Glyoxylic acid and oxazolidine with carboxyl groups were applied for modification of collagen.

分别应用含羧基的噁唑烷和乙醛酸对皮粉进行化学改性，提高对铬鞣剂的吸收率以达到减少铬鞣污染的目的。

In ternary system of PGA/POH and HDI isocyanurate, there are twomain reactions: one forms urethane at 30-50℃, the other producesoxazolidone at 140-165℃.

聚丙烯酸环氧丙酯（PGA、聚丙烯酸羟丙酯（POH和HDI三聚体的三元反应体系中，醇羟基与异氰酸酯在30-50℃下反应可生成氨酯，环氧基团与异氰酸酯在140-165℃下反应生成噁唑烷酮。

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。