查询词典 synthesize

The aim of this thesis is to synthesize some new chiral quaternary ammonium salts and bis-quaternary ammonium salts from the popular material------Chloramphenicoland abietic acid, and then we used these chiral quaternary ammonium salts in some substitution reactions and addition reactions in order to research their catalytic action and asymmetric induction.

本文利用廉价易得的手性物质——氯霉素和去氢枞酸为初始原料，合成了几种新的季铵盐类手性相转移催化剂，扩大了手性相转移催化剂的来源，并把它们应用于取代反应和加成反应，以探讨其催化机理和不对称诱导效应。

Combined with X-ray Diffraction Analysis, a new pigment-copper acetoarsenite, which were synthesize in Modem times, was also identified in Tibetan murals for the first time, and thus provided scientific data for dating the murals.

此外还利用x射线衍射分析技术，首次发现在西藏壁画制作中使用了近代人工合成的新颜料-乙酰亚砷酸铜，为壁画的保护和制作年代的推定提供了科学数据。

The aim of this paper is to synthesize nano-particles of barium ferrite with hexagonal flake and acicular and to study the effect of the different geometrical samples on microwave-absorbing performance.

本文目的是通过合成纳米级六角片状和纳米级针状钡铁氧体样品，研究这两种几何样品对微波吸收性能的影响。

Commun.2006, 2795. The researchers used the monomer, N –acryl pamidronate, to synthesize poly. This polymer should effectively raise the local concentration of the drug in the body and therefore maximize its therapeutic effect, they say.

研究人员用 N –acryl pamidronate的单体来合成pamidronate的聚合物，作者陈述这种聚合物应该能有效的提升药物在身体的局部浓度因此而能将治疗的效果最大化。

Using the methodology of radical cyclizations of α-acylamino radicals with acylsilanes to construct pyrrolizidine, indolizidine and quinolizidine skeletons, we were able to synthesize-Lentiginosine,-Epiquinamide,-Swainsonine and other analogous alkaloids.

本论文是延续实验室利用α-醯胺基碳自由基与矽基酮的环化反应来合成吡咯叻咭啶、吲哚叻咭啶和喹叺叻咭啶等骨架的方法，进而企图合成出-Lentiginosine、-Epiquinamide、-Swainsonine及其它类似的生物碱。

The reaction of C_(60) with freshly prepared sodium alkoxide solution under aerobic condition was well investigated,which provides a facile protocol to synthesize a variety of C_(60)-fused tetrahydrofuran derivatives with oxygen atom directly attached to fullerene cage.

系统的研究了C_(60)与新鲜配置的醇钠溶液在O_2存在条件下的反应，得到了一系列氧原子直接与C_(60)分子相连的富勒烯四氢呋喃结构的衍生物。

Methods Viruses were passed in embryonated hen eggs, and virion RNA was extracted from allantoic fluid and reverse transcribed to synthesize cDNA. cDNA was amplified by PCR and the PCR product was purified with a purification kit.

方法病毒在鸡胚中传代，从收获的尿囊液中提取病毒粒RNA，通过逆转录合成cDNA.cDNA通过PCR进行扩增，接着PCR产物用纯化试剂盒进行纯化。

The similar method was also used to synthesize other kinds of oxides, including AlO and CdO.

在此过程中，初步探讨了其生长过程，并与ZnO纳米晶的生长机理进行了对比。

Methods Synthesize integrin αvβ3 antagonist chemically and conjugate to chlorambucil through a amido bond.

目的 合成整合素αvβ3拮抗剂－苯丁酸氮芥偶联毒素，并检测其体外抗肿瘤活性。

The experiments on the chemical synthesis of DL-phenylalanine employed the Modified Aniline way, the Diazo Reaction, Hydrolysis Reaction, and Aminate Reaction in turm to synthesize the DL-phenylalanine.

混旋苯丙氨酸化学合成实验部分首先采用改进苯胺法，经重氮化反应、Meerwein反应、水解反应、氨化反应，合成混旋苯丙氨酸，收率达到84％。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。