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- In this thesis, the synthesis and its structure modification of bioactive stilbenes have been studied. 本论文研究了具有生物活性的芪类化合物的合成与结构修饰。
- METHODS: Structure modification to the carbomethoxy of DDB to synthesize some symmetrical and asymmetrical biphenyl anlogues. 方法：对联苯双酯的酯基进行结构修饰，合成了一些对称和不对称的联苯双酯类似物；
- DMDHEU-treated vinylon appeared a characteristic absorption peak at 1,700 cm~(-1) in infra-red spectra, indicating chemical structure modification. 处理后的维纶在红外光谱中1700厘米~(-1)处出现特征吸收峰;表示化学结构的改变.
- The simulation results indicate that the influence trend and notability of the structure modification are relative to the modified position. 分析结果表明，结构修改的影响趋势和显著性都与具体的修改部位有关。
- In order to look for new antidiabetic compounds, we have improved the method of isolating mangiferin and studied on structure modification of mangiferin. 为了寻找新的抗糖尿病化合物,我们改进了知母中芒果苷的提取分离工艺,并对芒果苷进行了结构修饰研究。
- Methods of structure modification of lead-compound piracetam,including acetamide side chain modified derivates,ring substituted derivates,and derivates lacking acetamide side chain,are summarized. 综述了对先导化合物吡拉西坦进行结构修饰的方法:乙酰胺侧链修饰衍生物、环修饰衍生物和非乙酰胺侧链衍生物法,并介绍了合成吡拉西坦类促智药的方法及其优缺点。
- As leading compounds these stilenes were modified by alkylation, glycosylation and association on the basis of the theory of structure modification and the theory of structure-activity relationships. 对取代苯甲醛和取代苯乙腈分别进行糖基化修饰,通过相转移催化法合成相应的糖苷中间体,后者经缩合得到糖基化修饰产物。
- Structural Modification of Pachymaran and the Mechanism Interaction between Azur A[J]. 引用该论文 高贵珍;焦庆才;李绪亮;钱玉梅.
- The total chemical synthesis, structural modification and structure-activity relationship of huperzine A have been systematically reviewed. 本文系统地综述了石杉碱甲的全合成方法、结构改造工作及构效关系的研究。
- The total synthesis, structural modification and structure-activity relationship of huperzine A have been systematically reviewed. 本文系统地综述了石杉碱甲的全合成方法、结构改造工作及构效关系的研究。
- Conclusions After chemcial structural modification,the water-solubility,absorption and therapeutic effect of Quercetin were all increased. 结论将槲皮素进行化学结构修饰后可增加其水溶性,增加人体吸收,增强疗效。
- We assume that the structural modification of oridonin would produce novel drug candidates with improved solubility and higher potency than oridonin. 本文试从药理作用、构效关系及其衍生物等方面对冬凌草甲素的研究概况作一综述。
- Pentacyclic triterpenes are among the most important bioactive compounds and biotransformation is a very useful tool to carry out the structural modification on these compounds. 五环三萜是一类重要的天然产物,研究发现生物转化能够对该类化合物进行多种类型的结构修饰。
- Structural modification is still popular and important in the area of finding novel quinolone antibacterial agents with more potential activity and broad spectrum. 对喹诺酮类化合物进行进一步的结构修饰,以便获得活性更强,活性谱更广的新喹诺酮类抗菌药,仍是抗感染化疗领域近几年的热点领域之一。
- In this scheme, a TPG is designed by a low cost structural modification of an accumulator with an algorithm for single input change test sequence generation. 该方案通过对累加器结构作低成本的设计改进，并通过一种高效的单跳变序列生成算法设计了时延故障测试序列生成器。
- different structure modification 结构修饰
- structure modification of peptide 肽结构改造
- Methods The structure modifications on 3-aryl groups and the side-chains of the oxazolidinone ring were summarized on the basis of published literature for oxazolidinones. 方法根据近期关于新的恶哇烷酮类抗菌药物研究开发现状的29篇相关文献，对恶唑烷酮的3位芳基和5位侧链的结构改造特点进行整理和归纳。
- Methods The structure modifications on benzene ring and the coupling chain of the curcumin were summarized on the basis of published literatures for curcumin. 方法根据关于姜黄素及其衍生物的研究开发现状的多篇相关文献,对姜黄素的苯环和中间连接链的结构改造特点进行整理和归纳。
- The two halves of the structure didn't marry up. 该结构的两部分未配合好。
