-噻唑烷

The key step involves reduction-amination of benzamine and -acetonide glycealdehyde 20 synthesized from cheap and available ascorbic acid . The hydrolysis product of 21 condensed with triphosgene to get 6, key intermediates of Linezolid and Eperizolid. After a series of reactions, we got Linezolid and Eperizolid in reasonable yields and purity. The spectrum and 〓 values of compounds 6 and other intermediates were identical with literature reported.

我们以国内非常便宜易得的维生素C为原料合成得到-丙酮保护的甘油醛20，20和取代苯胺经还原胺化反应制备得到二噁烷21，21水解后与三光气缩合成环得到利奈唑酮和埃皮唑酮的关键中间体6.6经一系列的反应合成得到了利奈唑酮和埃皮唑酮。6及一些中间体的〓D值与文献报道的数据相吻合。

The result of preliminary bioassay shows that the target compounds had obvious specificity to different bacteria at 0.1%, and had an inhibitory rate of 100% on Monilia albican and Escherichia coli.

抑菌测试结果表明，质量分数为0.1%时，N，N'-二（2-羟苄基）取代咪唑烷化合物对不同菌株的抑菌活性具有明显的特异性，对白色念珠菌、大肠杆菌的抑菌率达100%。

During the process of imidacloprid preparation, using phosphorus pentachloride dehydration and greatly excess 2-nitroiminoimidazolidine, the yield may reach 90%, and the purity is over 95%, so this a fairly good synthesis method.

吡虫啉合成中用五氧化二磷脱水法和过量2-硝基亚氨基咪唑烷法收率接近90%，纯度达95%以上，是较佳的合成方法。

Tetrahydrofolatecoenzyme,Benzimidazoline,One-carbontransfer,Mannichalkali,Tetrahydroisoquinoline,Tetrahydro-β-carboline

四氢叶酸辅酶，苯并咪唑烷，一碳转移，Mannich碱，四氢异喹啉，四氢-β-咔啉

In addition, we have discovered a new reaction, it is that Dy/SiCl_4 can promote imines to give imidazolidines and tetrasubstituted hydrazines.

Dy／SiCl_4体系具有另外一个重要特性，就是我们发现它能够促进亚胺一步生成五取代的咪唑烷和四取代的肼，这是用其它自由基或直接用稀土金属和亚胺反应无法得到的。

The pyrrole, oxazoles, pyridinones, quinolines, dibenzodiazepines, tetrahydrobenzoxazines and tetronic acids have been prepared from enaminones.

吡咯、唑烷、嘧啶酮、喹啉、二苯并二氮杂环类、四氢苯并噁嗪酮和特窗酸等都可以由烯胺酮类化合物制得。

Bezaldehyde was used as protective agent in first method.S-Epichloeohydrin was aminated and acidulated to give(2S)-1-Amino-3-...

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。

Compounds, N - methylene chloride acetyl groups - 2 - methyl - 2,5 - diethyl arene pbo.

化合物Ⅱ：N-二氯乙酰基-2-甲基-2，5-二乙基-1，3-恶唑烷。

Through the different concentrations of security agents on GSH conten, GST activity, ALS activity in different degree, basic verifies the methylene chloride acetyl groups were evil to reduce CFC sulfonylurea lung damage mechanism of corn.

通过不同浓度的安全剂对GSH含量，GST活性，ALS活性均有不同程度的促进作用，基本验证了二氯乙酰基恶唑烷类化合物减轻氯磺隆对玉米伤害的作用机理。我只有这些分数了，谢谢英语大侠了！

The reactions involved in the co-curing are: cyclodimerization and cyclotrimerization of cyanates, polyetherfication of epoxy groups and cyclotrimerization of cyclic dimers, as well as the formation of oxazolidinone rings.

反应历程首先是氰酸酯发生自聚反应形成二聚体或三聚体，然后二聚体可进一步共聚形成三嗪环，此过程伴随着环氧基的聚醚反应，最后是三嗪环与剩余的环氧基反应形成NFDA1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。