化学合成

In this paper, various synthetic methods of coenzyme Q10 appeared in about half a century were reviewed with emphasis on the semi-chemosynthetic methods using natural solanesol extracted from tobacco as starting material. The key factors and development direction of coenzyme Q10 chemosynthesis were illustrated in this paper as well.

笔者根据半个世纪以来有关辅酶Q10化学合成的各种文献报道，对辅酶Q10现有的各种化学合成路线及其工艺优劣进行了介绍和比较，重点介绍了从烟草中提取天然茄尼醇为原料的半化学合成辅酶Q10方法，并阐明了化学合成辅酶Q10的关键因素和发展方向。

The majority of them are produced by fermentation using microorganisms of different species identified as species belonging to Aspergillus, Monascus, Nocardia, Amycolatopsis, Mucor or Penicillium genus, and some are obtained by treating the fermentation products using the methods of chemical synthesis or they are the products of total chemical synthesis.

它们主要是用属于曲霉属，红曲霉属，诺卡菌属，Amycolatopsis，毛霉属或青霉属的不同物种的微生物通过发酵而生产的。有一些是用化学合成方法处理发酵产物而获得的或者有一些是全部化学合成的产物。

The general method and microwave radiation Veratrum aldehyde synthesis comparison Abstract: Objective To investigate the synthesis methods Veratrum aldehyde and to study the synthesis of microwave radiation of the advantages and disadvantages of this new approach, to provide guidance for the production of meaning.

化学合成毕业设计翻译求解急！！用普通方法和微波辐射法合成藜芦醛的比较摘要：目的考察合成藜芦醛的方法，并研究微波辐射合成这种新方法的优缺点，为生产提供指导意义。

Its production technologies (such as brucite milling method and chemical synthesis method) and modification researches were summarized,and the research hot spots of chemical synthesis method and modification were mainly introduced.

综述了氢氧化镁的生产技术(水镁石磨细法和化学合成法)以及改性研究，重点介绍了氢氧化镁的化学合成法以及改性研究的热点。

The invention is characterized in that the molecule of the polymer adsorption material has a structure in formula I: in the formula, R is selected from the natural polysaccharides with amino groups and hydroxyls and the derivatives thereof or the chemosynthetic polymers, the molecular weight of which is from 6 KD to 500 KD; X is selected from a C0 to C6 paraffinic chain with O atoms, N atoms or OH groups; R1, R2 and R3 are selected from a C1 to C4 alkyl group.

生物医学材料领域中的水溶性阳离子多聚物吸附材料及其应用，包括采用带有氨基或羟基的天然多糖及其衍生物或者化学合成多聚物季铵化反应合成，其特征在于该多聚物吸附材料分子具有式的结构：式中，R选自粘均分子量范围为6KD～500KD的带有氨基或羟基的天然多糖及其衍生物或者化学合成多聚物；X选自含有O原子、N原子或者OH基团的C 0 ～C 6 烷链；R 1 、R 2 、R 3 选自C 1 ～C 4 的烷基。

Fluorenyl methoxy carbonylsolid-phase synthesis of Fusukang was studied firstly,including stepwise solid-phase peptide synthesis and solid-phase convergent synthesis.

研究了36肽扶素康的9-芴甲氧羰基法固相化学合成，包括Fmoc固相逐步化学合成和Fmoc固相片断缩合化学合成。

Five synthesis methods of AlN powder were discussed, namely direct nitrogenation of Al powder, carbothermal reduction of Al2O3, chemical vapor deposition, sol-gel method, self-propagating high-temperature synthesis and plasma chemical synthesis. The choice of AlN sintering additives and five sintering technologies were analysed, namely hot pressing sintering, pressureless sintering, spark plasma sintering, microwave sintering and self-propagating sintering. The preparation processes of AlN substrate and its influencing factors were expounded.

介绍AlN陶瓷的典型性能和导热机理；讨论AlN粉末的5种合成方法：铝粉直接氮化法、Al2O3碳热还原法、化学气相沉积法、溶胶凝胶法、自蔓延高温合成法和等离子化学合成法；分析AlN烧结助剂的选择和5种烧结工艺：热压烧结、无压烧结、放电等离子烧结、微波烧结及自蔓延烧结；阐述AlN基板的制备工艺及其影响因素。

Mol〓. As the result, some sensitizers have obviously sensitive effect, the ratio of / in photostationary state was change, We designed two methods, One of them is that isomers were synthesized, then we obtained the mixtures of isomers via photoisomerization.

本论文试图由两种方法获得-O-烃基-α-氧代环十二酮肟，一种是由体的肟通过化学合成得到体的O-烃基-α-氧代环十二酮肟，再通过光化学反应得到其体；另一种是由-α-氧代环十二酮肟，通过光化学异构合成体，再由体肟化学合成得到-O-烃基-α-氧代环十二酮肟。

The recent synthesis progress of glycoconjugate is reviewed,including the various methods of the glycosidic bond formation by chemical synthesis and the synthesis strategies of novel complex glycoconjugates,such as glycopeptides,glycoproteins and glycolipids .

本文介绍近年来各种糖缀合物化学合成的研究进展，包括各种糖苷键的化学合成方法以及各种特殊复杂糖缀合物，如糖肽、糖蛋白、糖脂的化学合成策略。

With high efficiency, high selectivity, security and environmental friendship, the biocatalysis possesses significant advantages over chemical catalysis in organic synthesis, especially in the asymmetric synthesis of the enantiomerically pure compounds and in the resolution of racemates.

生物催化的高效性、选择性、安全性以及环境友好等优点，使其在一些化学合成领域，特别是在对映体纯的手性化合物的合成和消旋体拆分等方面，具有化学催化不可比拟的优势。

No clear conclusions can be made about the predictie alidity of specific measures, they found, except for criteria for the underuse of drugs for cardioascular disease.

除了心血管病不合理用药标准外，对于特定评价方法的预测效度没有明确的结论。

The third and last is that almost all of them, being infinite in number, have been impostures, and by idle and crafty brains merely contrived and feigned after the event past.

第三、即最后一点是：几乎所有这些不胜枚举的预言都是欺人之谈，都是在事件过后由无聊而狡猾的脑筋推测与凭空捏造的。