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- Any of several yellow pigments consisting of normal lead chromate and other lead compounds. 任何由常态的铬酸铅和其他铅化合物组成的黄色颜料。
- A lead compound will have some property considered therapeutically useful. 一种先导化合物应具有治疗作用的特性。
- In the late 1960s and early 1970s, efforts were made to remove lead compounds from gasoline. 在六十年代后期和七十年代初期，人们作了努力从汽油中除去铅化合物。
- Natural products are one of the moat important sources of the lead compounds in drug discovery. 天然产物是药物先导化合物的重要来源。
- This paper describes a series of glasses colored by lead compounds of S, Se, Te. 本文叙述了用铅的硫、硒、碲化合物着色的玻璃系列。
- Therefore, it is a promising research project to modify lead compounds by saccharides. 结果表明,修饰过的先导化合物能有效地降低毒副作用,增强药效。
- Benzothiazepine derivatives are of great importance in the discovery of lead compounds. 摘要在寻找先导化合物的过程中。
- Objective:To develop lead compounds classified as a nonpeptide bacterial peptide deformylase (PDF) inhibitor. 目的:发现新的肽脱甲酰基酶(PDF)抑制剂先导化合物。
- The result shows that the modified lead compounds can decrease the toxicity and side effect efficiently, and enhance the pharmacal effect. 从单糖、二糖和寡糖、多糖三个层面,分别对糖及其衍生物与先导化合物的键合方式、经过结构修饰的先导化合物的生物活性变化作了综述。
- Flavonoids, terpenoids, alkaloids were commonly observed.Conclusion Plenty of lead compounds for the research of anti-Alzheimer drugs are provided by these natural products. 结论 中药具有有效性和低毒性的特点，在老年性痴呆症的预防和治疗方面具有更大的潜力。
- A review of 31 new pesticides and 35 new lead compounds with pesticidal activities disclosed in 11thIUPAC international congress of pesticide chemistry. 概述了第11届IUPAC国际农药化学会议中公开的31个新农药品种和35个具有生物活性的新化合物。
- The dissolve properties of different lead compounds in black soil, brown soil and meadow were the same, which was: Pb(NO3)2>PbO, Pb3(CO3)2(OH)2>PbSO4>PbS. The dissoluted Pb content did not have marked difference between PbO and Pb3(CO3)2(OH)2 (P<0.01). 不同铅化合物在黑土、棕壤和草甸土中的溶解性大小一致;Pb(NO3)2>PbO;Pb3(CO3)2(OH)2>PbSO4>PbS;PbO和Pb3(CO3)2(OH)2处理下土壤溶解态Pb含量没有显著性差异(P>0.;01)
- Yintai(p-hydroxy butrophenone) is a kind of bionic fungicides synthesized by simulating the lead compound of ginkgol isolated from the exosperm of ginkgo fruit. 银泰(1-对羟基苯基丁酮)是以银杏外种皮提纯物白果酚为先导化合物仿生合成的一种杀菌剂。
- Methods: According to the structur e of the lead compound: genistein,a genistein derivative,5 hydroxy 4' nitro 7 sustituted oxo isoflavones were designed and synthesized. 方法:根据先导化合物金雀异黄素的结构,设计合成了一类金雀异黄素衍生物:5-羟基-4'-硝基-7-取代氧基异黄酮。
- Objective To set up a methodology for quick finding of important leading compounds from complex plant samples. 目的建立从复杂植物样品中快速发现有意义的先导化合物的研究方法。
- To search for better lead compounds, the structure of rebeccamycin was modified or altered, and large numbers of its analogues have been obtained, via biosynthesis and chemical synthesis. 为了寻找活性更好的药物先导化合物，人们对蝴蝶霉素的结构进行修饰和改造，通过生物方法和化学方法，合成了大量的类似物。
- Abstract Pot experiment was conducted to study cadmium,zinc and lead compound effects on phytotoxicity,growth and accumulation of spinach grown in brown earth. 本文采用盆栽试验，研究了棕壤中镉、锌、铅复合污染对菠菜的影响．结果表明，共存元素协同使菠菜的产量降低，它们的影响顺序是锌＞镉＞铅。
- In order to search for bone? targeted leading compounds with high affinity and low toxicity, seven steroid? bisphosphonate compounds were synthesized. 本文设计合成了7个甾体?膦酸酯偶合物，希望新化合物既有趋骨性又有协同抗骨质疏松作用，能得到疗效好副作用小的骨靶向化合物的先导物。
- In order to search for bone-targeted leading compounds with high affinity and low toxicity，seven steroid-bisphosphonate compounds were synthesized. 本文设计合成了7个甾体-双膦酸酯偶合物，希望新化合物既有趋骨性又有协同抗骨质疏松作用，能得到疗效好副作用小的骨靶向化合物的先导物。
- The horse forged ahead the lead in the homestretch. 那匹马在最后阶段突然加速跑到前面。
