杂合的

In chapter 3, we studied the syntheses and structures of the diazene-coordinated dimetal bridging carbene complexes.

在第三章中，我们对含有杂环配位的双金属桥卡宾络合物的合成进行了初步的研究。

It can be seen from the above initial results, the two N-heterocyclic carbene palladium complexes should participate in the catalytic reaction or at least did partly.

初步结果可以得出，这两种N-杂环卡宾钯络合物参与或部分参与了卤代芳烃的催化偶联过程，对产物的顺利生成有某种程度的贡献。

Fluorescence in situ hybridization was carried out to confirm the integration of HBV DNA into male pronucleus and its replication with cell division in embryonic development.(Reverse transcriptase polymerase chain reaction,RT-PCR) and immunofluoresence assay were performed to observe the expression of the HBV gene in two-cell stage.

材料与方法：成熟雄鼠麻醉后双侧睾丸注射经脂质体DOSPER包裹的HBV质粒，手术后雄鼠与超排雌鼠合笼交配，用荧光原位杂变(Fluorescence in situ hybridization，FISH)分别检测单细胞胚和二细胞胚间期核中HBV DNA的存在与复制，用逆转录聚含酶链反应(Reverse transcriptase-polymerase chain reaction，RT-PCR)和免疫荧光方法检测HBV基因在二细胞胚胎中的表达。

The regioselectivity of primary aminyl radical cyclization was first investigated in this dissertation. The total synthesis of 14-Aza camptothecin was then achieved on the basis of our investigation in the construction of pyrimidin-4-one skeleton via [4+2] strategy.

中文摘要本论文首先探讨了伯胺氮自由基环合反应的区域选择性，然后应用[4 + 2]策略对吡咯并嘧啶-4-酮的合成方法进行了研究，并在此基础上完成了14-氮杂喜树碱的合成工作。

In this paper, the synthesis ways and applications of 4,5-dimethyl-l,3-dioxolen -2-one were introduced. An appropriate way synthesizing DMDO from acetoin via acylation, cyclization and dehydrochlorination was selected. The influences of various process conditions on the reaction were studied in detail, and the optimum process conditions were obtained by single factor experiments.

本文介绍了医药中间体4，5-二甲基-1，3-二氧杂环戊烯-2-酮的应用情况和合成路线，选择了适于工业化生产的工艺路线，即采用羟基丁酮为原料，经酰化、环合和脱氯化氢等步骤合成DMDO，并采用单因素试验法详细研究了各项工艺条件对反应结果的影响规律，确定了优化工艺条件。

Amino-2-methylpropanol was utilized as a chemical modifying reagent to modify carboxyl groups in unsaturated fatty acids into nitrogen-containing heterocycles, which effectively suppressed the migration of double bonds of the alkenyl within the electron impact source and led to regular informative mass spectra indicative of the position of the olefinic bonds in the chain.

以2-氨基－2-甲基丙醇为脂肪酸的化学修饰试剂，将不饱和脂肪酸羧基化学修饰试剂，将不饱合脂肪酸羧基化学修饰成含氮杂环，从而避免了链烯基中碳碳双键在EI源中的移动，并使质谱呈现显示双键位置的规范信息。

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。

Macrocycle with two pyridyl unitsZ-protected groups in the di-ester formed from esterification of Z-Glycine with 2,6-bishydroxymethyl pyridine was removed and thenconverted into Ts-protected group.

本论文以天然氨基酸为手性源，以芳杂环为大环分子的刚性因素，研究它们的环合反应和分子结构，为此设计了下列三种结构类型的大环分子：一。

Chitosansilica hybrid beadsbearing with metal ion chelating group was prepared by solgel method and microemulsion technique. The condition for the preparation of CSHB, as well as its structure and morphology were investigated.

采用溶胶凝胶及微乳液技术制备了以壳聚糖硅基杂化材料为骨架并带有金属离子螯合官能团的球形基质，并对该基质的制备条件及结构形貌进行了研究与表征。

Our four different types of teeth together are called collective dentition and they allows humans to be omnivores eating both meat and vegetables .

我们的四种不同类型的牙齿合在一起被称为牙齿系统，它们让人成为杂食动物。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新