合成物

According to the Box-Benhnken design principle,the method of response surface method with 3 factors and 3 levels was used. The factors influencing the technological parameters were determined by means of regression analysis. Response surfaces were finally graphed with the yield as the response value. The synthesis conditions were optimized as follows:reaction reagent was NBS,stoichiometric proportion between NBS and anhydrovinblastine was 1.07; the dosage of TFA was 22 mL/L; reaction temperature was －68 ℃ and duration was 90 min.

在单因素实验基础上，根据Box-Benhnken实验设计原理，采用三因素三水平的响应面分析法，研究了各个因素及其交互作用后，得到了合成7′-Br-脱水长春碱的最佳工艺条件：以二氯甲烷为溶剂，采用NBS为溴代剂，其用量与底物的物质的量比为1.07∶1，TFA的加入量22 mL/L，在－68 ℃下反应90 min，终止反应后，得到卤代产物。

In Chapter 2 and Chapter 3, two intercalates, namely 〓and 〓, were synthesized by the direct reactions of 2, 2′-bipyor phen with 〓, respectively.

第二章和第三章分别选取2，2′-联吡啶和邻菲咯啉与〓进行直接反应，合成了夹层物〓和〓。

In Chapter 4, two intercalates, namely 〓 and〓, were synthesized by the direct reactions of 4,4′-bipy· 2HCl with 〓 and 〓, respectively.

第四章通过4，4′-联吡啶盐酸盐分别与〓、〓直接反应，合成了夹层物〓和〓研究了客体在层间的存在形式。

In Chapter 6, five intercalates were synthesized by the ion-exchange reac-tions of some organic chromophores of high β values with 〓 pre-interca-late.

第六章〓β值的有机发色团与〓反应，合成了5个夹层物，探讨了它们的磁性和二阶非线性光学性质。

We studied the infection ofthe different reactant ratios to the degree of nitration when the polystyrere was nitrified. Thena series PS-NH_2 With different concentrations of amidocyanogen were gained by reducingPS-NO_2. At last the high active acryloylthiourea were grafted on the amidocyamogens.

在聚苯乙烯的硝化过程中，研究了不同的反应物配比对硝化度的影响，并对不同硝化度的硝基聚苯乙烯进行还原反应，得到了胺基含量不同的系列胺基聚苯乙烯，最后利用聚苯乙烯上的胺基和高活性的丙烯酰基异硫氰酸酯进行加成，合成AGPS。

A multi-head quarternary ammonium salt type surfactant, notated as NTX-100, with ≥50% active substances is prepared from long chain fatty acids.

由长链脂肪酸合成了多头季铵盐型表面活性剂NTX 100(有效物≥50%)。

For the first time, we found that the EHFV propagated in HUVEC has a potentiating stimulation to ET-1 and PGI〓 secretion , which may be respensible for the increased plasma ET -1 level and PGI〓 concentration in patients with EHF during the early phase of the disease.

我们的研究结果提示，HUVEC对EHFV敏感，EHFV感染未引起HUVEC的细胞病变，但可抑制HUVEC的增殖，这有可能改变EC的基因调节，或低调，如Ⅷ R：Ag合成障碍，引起止血功能异常；或高调，如主要组织相容性复合物Ⅱ型抗原、干扰素β和内皮细胞白细胞粘附因子的表达增加，增强EC的炎症反应。

In the reaction process of synthesizing vinyl acetate,the loss of the active species Zn2 from the surface of activated carbon results from Zn2 sublimating of gas phase and the blocking inside micropores with condensation products.

乙炔和醋酸合成醋酸乙烯的反应过程中，催化剂的失活，是由催化剂中的醋酸锌Zn2从活性炭表面上升华到气相中以及被凝聚物堵在微孔内部而引起的。

Results: Four new complexes were synthesized and their structures were determined.

结果： 合成了4个姜黄素的金属配合物，并确定其结构。

So, it gets many attention of chemists to develop the methods for this kind of compounds.

这种新的仿生合成方法为从羧酸和卤代物为起始原料制备四氢异喹啉类化合物提供了新的方法，为新药的制备提供了新的思路。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失