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The synthesis of the intermediate amidetriazinone was a crucial step in the synthesis of triazinone. Ethyl acetate was used as the initial material then was carried out for five steps hydrazine hydrate, triphosgene, chloroacetone, hydrazine hydrate respectively with the yield of 59.8%.

三嗪酮类化合物的合成关键是中间体氨基三嗪酮，本文以乙酸乙酯为起始原料，经过酯的肼解、成环反应、胺的烷基化、酮和肼的缩合、酰胺的水解五步反应合成中间体氨基三嗪酮，其收率达59.8%。

At present,the synthesis of lignin that is not only a means,but Phenylalanine AmmoniaLyaseand Cinnamic acid 4-Hydroxylase(C4H),such as enzyme in the synthesis played a very important role.

目前认为木质素的合成途径不只一条，但苯丙氨酸解氨酶和肉桂酸4-羟基化酶(C4H)等酶在合成中起到了十分重要的作用。

The purpose of our study is to investigate the mechanism of Cinnamyl aldehyde on NIH3T3 proliferation and collagen synthesis at an angle of cell biology. 1.Effects Of CA On NIH3T3 Proliferation And collagen synthesis (1) Cell proliferation was measured by MTT assay.

本研究以NIH3T3为细胞模型，从细胞生物学角度探讨肉桂主要有效成分桂皮醛的作用机制，为&回阳生肌法&提供理论依据，并为肉桂在中医外科治疗慢性皮肤溃疡过程中的推广应用提供药理学基础。

3 The effects of APS and AstragalosideⅣon synthesis of collagen Measure the Radix Astragali impact on NIH3T3 cells collagenic synthesis of many candies with the hydroxyproline reagent box.

2.3黄芪多糖和黄芪甲苷对胶原合成的影响本实验以NIH3T3为细胞模型，用羟脯氨酸试剂盒测量黄芪多糖对NIH3T3细胞胶原合成作用的影响。

Through activating the synthesis of jasmonic acid itself,aboveground application of jasmonia acid could induce the expression of Bx1,Bx9,PAL,PR-1,MPI,FPS and TPS genes,increase DIMBOA content and decrease caffeic acid content in leaves;on the other hand,the systematic induction of gene expression of Bx6,Bx9、PAL and PR-2a,increase of contents of coumaric acid and caffeic acid,and decrease of syringic acid content in the roots were related with the activating of jasmonic acid synthesis in the aboveground.

茉莉酸处理地上部是通过激活茉莉酸自身合成来诱导叶片Bx1、Bx9、PAL、PR-1、MPI、FPS和TPS基因的表达、增加叶片丁布含量及降低咖啡酸含量的，同时系统诱导根系Bx6、Bx9、PAL和PR-2a基因表达、增加香豆酸和咖啡酸含量以及降低丁香酸含量则与激活地上部茉莉酸自身合成相关。

These indicted that the low temperature in autumn and short sunshine could promote the synthesis of the leaf protein,degrade the buildup of starch and invert part of starch to glucose,thus the PAL enzymatic activity were increased and the synthesis of cyanin was promoted,the leaf color changed red.

这说明秋季低温和短日照促进叶片蛋白质的合成，降低淀粉积累，将部分淀粉转化为葡萄糖，PAL酶活性增加，从而促进花色素苷的合成，叶色转为红色。

The synthesis of 4,5,7-trichloroquinoline makes use of ethyl orthoformate, cyanoacetic ester and 3,5-dichloroaniline as the raw materials. The synthesis is completed by four steps: condensation, cyclization, hydrolyzation and chlorination. Several conditions concerned in the process are studied, the whole yield of 4,5,7-trichloroquinoline is about 53%, and the purity of it is about 96%. All the products are testified by IR, NMR and HPLC.

介绍了以3，5-二氯苯胺、原甲酸三乙酯和氰乙酸乙酯为原料，经过缩合、成环、水解和氯代4步反应制备4，5，7-三氯喹啉的方法，对相关的试验条件进行了考察，通过红外光谱、核磁共振谱和液相色谱对4，5，7-三氯喹啉的结构和纯度进行表征和测定，试验结果为4，5，7-三氯喹啉的纯度大于96%，总收率达到53%。

This work, concentrated on the asymmetric allylation of aldehydes controlled by different chiral auxiliaries prepared from rotational pure tartaric acid, can be divided into three parts.The first part aims to review the developments of chiral drugs and asymmetric synthesis, from which derived the present research topic backgrounds and works.Synthesis and applications of allylation from aldehydes are the second part of the thesis. By optimizing the reaction conditions, such as solvents, temperature, time and chiral auxiliaries like N,N\'-dibenzyl tartamide, N,N\'-p-dimethylphenyl tartamide, N,N\'-o-dimethylphenyl tartamide, N,N\'-o-dichlorophenyl tartamide, N,N\'-a-dinaphyl tartamide, N,N\'-dicyclohexyl tartamide and N,N\'-diphenyl tartamide, ideal experimenttal conditions are obtained according to HPLC monitoring, as well as the auxiliaries\' recoveries experiments. Starting from benzaldehyde and 3-bromopropaldehyde, N,N\'-dibenzyl tartamide is considered the best auxiliary in this reaction.

本文介绍了醛的不对称烯丙基化反应，以光学纯酒石酸为原料，研究了不同构型手性配体在醛的烯丙基化反应中的立体选择性，全文共分三部分十个章节：第一部分对当前手性药物和手性技术进行了概述，并由此展开了本文的研究背景和任务；第二部分为有机合成部分，对醛的不对称烯丙基化反应进行了深入探讨，以苯甲醛为原料对反应条件进行优化，在优化的反应条件下对制备的七种可回收手性酰胺配体(N-苄基酒石酸二酰胺、N-对甲苯基酒石酸二酰胺、N-邻甲苯基酒石酸二酰胺、N-邻氯苯基酒石酸二酰胺、N-a-萘基酒石酸二酰胺、N-环己基酒石酸二酰胺和N-苯基酒石酸二酰胺)进行筛选，优化配体回收实验条件，最终确定出N-苄基酒石酸二酰胺在苯甲醛的不对称烯丙基化反应中具有较大优越性，结晶回收的手性配体光学纯度保持不变。

Reaction of 5'-O-p-methoxytrityl-thymidine with 1, 1'-carbonyl-diimidazole gave the 3'-O-carbonylimidazolide, which was condensed in high yield with 3'-O-protected thymidine to give a dithymidine carbonate. In the same way, we obtained the protected trithymidine dicarbonate. After deprotection, we obtained quantatively the trithymidine dicarbonate.By the same stratagy, we completed the synthesis of dithymidine sulfite.It was shown that allyl can be used as a good protection group for hydroxyl of ribose in the synthesis of oligonucleotides consisting in some unstable nucleotide analogues.

我们在第一部分工作的基础上，以烯丙基作为3'-OH的保护基合成了保护的三胸苷碳酸酯以及二胸苷亚硫酸酯，用我们所得的脱保护条件进行了脱保护研究，得到了三胸苷碳酸酯以及二胸苷亚硫酸酯，并研究了它们合成中的一些化学问题，结果表明：烯丙基能很好地运用于这两类寡核苷酸类似物的合成中，其脱保护条件为中性，不会影响碳酸酯键及亚硫酸酯键。

Ytterbium metal, ytterbium diiodide, samarium diiodide promoted organic reaction and their applications in organic synthesis;;bis carbonate in organic synthesis

中文题名金属镱，二碘化镱和二碘化钐促进的有机反应在有机合成中的应用；双碳酸酯在有机合成中的应用

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