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- 与 compounds 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Last, the design of anti-cancer adlay supplement must be tumor-specific since that the cytotoxicity of the compounds varies depending on the cell line tested and that such variation may in turn influence those combined effects of the pure compounds.
最后,在设计开发薏仁成为辅助抑制肿瘤保健食品时,须要针对不同的细胞来做不同的设计,以提高抑制癌细胞生长的效果。
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The general formulas of these compounds are as follows:The strobilurin derivatives were synthesized from substitutedβ-keto esters (2) as starting material which were prepared from substituted ketones (1) and dimethyl carbonate. The ester (2) and methyl hydrazine or substituted amidine were dissolved in methanol and the mixture was heated to reflux to obtain the substituted 5-hydroxy-1H-pyrazole (3) or 4-hydroxy-pyrimidine (4). The title compounds were prepared by reacting the intermediates (3 and 4) with substituted halomethylphenyls which contain four active group under basic conditions.
本论文所合成的strobilurin化合物均是以β-酮酸酯类化合物(2)为起始原料合成的,该中间体(2)是由酮类化合物(1)与碳酸二甲酯在碱性条件下反应生成的,中间体(2)与甲基肼或取代脒类化合物在甲醇中回流制得取代的1H-5-羟基吡唑(3)或4-羟基嘧啶(4),中间体(3和4)再与包含四种活性基的苄卤中间体在碱性条件下制得目标化合物。
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The genera formulas of these compounds are as follows:The strobilurin derivatives were synthesized from substitutedβ-keto esters (2) as starting material which were prepared from substituted ketones (1) and dimethyl carbonate. The ester (2) and methyl hydrazine or substituted amidine were dissolved in methanol and the mixture was heated to reflux to obtain the substituted 5-hydroxy-1H-pyrazole (3) or 4-hydroxy-pyrimidine (4). The title compounds were prepared by reacting the intermediates (3 and 4) with substituted halomethylphenyls which contain four active group under basic conditions.
本论文所合成的strobilurin化合物均是以β-酮酸酯类化合物(2)为起始原料合成的,该中间体(2)是由酮类化合物(1)与碳酸二甲酯在碱性条件下反应生成的,中间体(2)与甲基肼或取代脒类化合物在甲醇中回流制得取代的1H-5-羟基吡唑(3)或4-羟基嘧啶(4),中间体(3和4)再与包含四种活性基的苄卤中间体在碱性条件下制得目标化合物。
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These studies indicate the rationality of our molecular design based on the crystal structure of KARI complex. To obtain more KARI inhibitors with high activities, the molecular docking and 3D-QSAR methods were applied to our further studying of these amidine compounds. Two methods AutoDock3. 0.3 and DOCK4. 0 were used in molecular docking, and the calculate results accord with that of herbicidal tests in general. The CoMFA model from 3D-QSAR analysis provided useful guidance for designing highly active compounds prior to their synthesis.
这些分子作为潜在的KARI抑制剂为基于KARI的农药分子设计提供了有利指导;对部分小分子进行了合成,在除草活性初筛的近三十个化合物中,个别化合物表现出较好的除草活性,其中一个化合物wb1596对油菜和稗草具有较高的生长抑制率,并通过E.coli KARI酶活性抑制试验验证了其KARI酶的作用靶标,此化合物可以作为KARI一个有苗头的抑制剂为后续工作奠定了基础;对发现的有苗头的KARI抑制剂进行了结构修饰和优化,合成了一系列脒类化合物并确证了它们的结构,改造后的化合物与原抑制剂相比大多除草活性相当或更佳,从而表明我们基于靶标结构的分子设计的合理可靠性;对所合成一系列脒类化合物进行了分子对接和三维定量构效关系研究。
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In part one, the reactions of some active fluorine-containing compounds such as 2, 2-dihydropolyfluoroalkanoic acids and ethyl 2-hydropolyfluoroalkenoates were studied and various fluorine-containing heterocyclic compounds were synthesized. Using 2, 2-dihydropolyfluoroalkanoic acids as the starting material, 4-fluoroalkyl quinolin-2-ols, 2- [ -1-hydropolyfluoro-1-alkenyl] -4H-3, 1-benzoxazin-4-ones, 1-aryl -4, 9-dihydro-3-fluoro-alkyl-1H-pyrazo [3, 4-b] quinolin-4-ones, 5-fluoroalkyl-12H-quin olino [2, 1-b] quinazolin-12-ones, 4-fluoroalkyl-1, 3-dihydro-1, 5-benzodiazepin-2-ones and 4-fluoroalkyl-2H-pyrido [1, 2-a] pyrimidin-2-ones were synthesized through its condensation reaction with anilines, anthranilic acid, N'-aryl-o-aminobenzamides, o-nitro aniline, o-amino pyridine and their derivatives and the subsequent transformations. 5-Fluoroalkyl isoxazolidines, 3-fluoro-3-fluoroalkylisoxazolidino [4, 3-c] quinolin-4-ones, 3-fluoroalkylisoxazolino [4, 3-c] quinolin-4-ones and 2-aryl-3per fluoroacylindoles were synthesized by inter-and intramolecular 1, 3-dipolar cycloaddition of fluorine-containing olefins and nitrones.
第二部分,我们研究了α,α-二氟苄基卤类化合物的亚磺化脱卤反应、产物的转化及全氟烷基亚磺酸盐与芳环化合物的全氟烷基化反应,发现全氟苄基碘或溴及α,α一二氟苄基溴在保险粉等亚磺化脱卤试剂引发下可生成相应的亚磺酸盐;全氟苄基亚磺酸盐与氯气或溴反应可生成全氟苄基磺酰氯或磺酰溴;在烯烃存在下,全氟苄基碘则与烯烃发生加成反应,生成相应的1:1加成产物;在三价醋酸锰的作用下,部分芳香化合物如茴香醚,二甲氧基苯,吡啶,喹啉等可以和过量的全氟烷基亚磺酸盐发生双全氟烷基化反应,反应表现出一定的区域选择性,产率良好。
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A series of antimony mercaptide compounds which formula are Sb 〓 and Sb S (CH〓〓COOR 〓(R represents an alkyl or aryl, aralkyl, n=0~2) have been synthesized. A new synthetic method has been invented to solve the defect of abroad patent method which has complex technological conditions and singleness intermediate compounds. A new catalyst QL-1 and preactivated antimony trioxide and other means have been used to avoid neutralizing, washing, separating and other procedures of intermediate and simplifing process flow at the same time. According to this new technique, a series of antimony mercaptides and their intermediate products have been synthesized with high yield.
合成了结构为SbS(CH〓〓COOR〓及Sb〓(R为烃基或芳烷基,n=0~2)的一系列硫醇锑化合物,针对国外专利报道的合成工艺存在着工艺条件苛刻,同时需多步完成,操作复杂,而且中间体品种单一的缺陷,发明了一种一步法合成硫醇锑化合物的新工艺,采用QL-1催化剂,且将三氧化二锑预先活化,变固—液相反应为液—液相反应,同时可免除中间体的中和、洗涤、分离等工序,工艺流程简化,产品收率高,且能制得系列硫醇锑产品。
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Qingyangshenylycosides is a mixture of several related compounds derived from the root of a Traditional Chinese Medicine, Cynanchum Otophyllum. Pharmacological characterization of the compounds indicated that the drug had a significant antiepileptic and anticonvulsant activity on kindling, rat audiogenic seizures and ferrous sulfate-induced epilepsy.
青阳参总甙(Qingyangshenylycosides,QYS)是萝摩科鹅绒属植物青阳参根粉提取物,已有动物实验表明QYS对大鼠听源性惊厥(audiogenic seizure,AGS)发作、&点燃&效应以及硫酸亚铁诱导的癫痫发作具有明显的对抗作用,表现出显著的抗癫痫效应。
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Azo aromatic compounds exist widely in the world and millions of tons of azo compounds are produced each year.
偶氮芳香族化合物在自然界广泛存在,而且每年以数百万吨的数量被制造出来。
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The absorption peaks of cyanine dye part in two compounds were bathochromic shiftsin some content because they were infected by [60]fullerene, this indicated that therewas interaction between [60]fullerene part and cyanine dye part in the compounds.
但染料部分的吸收由于受〓富勒烯的影响,在不同程度上发生了红移,这初步说明了:〓富勒烯和染料之间有分子内的作用。
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This thesis includes five parts as follows.1. The backgrounds and some relative concepts of this work are briefly introduced. The photochemistry of benzamides and compounds with thiourea functional group is also concisely reviewed.2. Total of fourteen benzamides with different substituted groups have been synthesized and structurally characterized. Better photoreaction time for that kind of compounds at given concentrations is confirmed by tracking its'UV spectrum and GC chromatogram. A representative dibenzophenone photoproduct has been determined by X-ray crystallography. The mechanisms of photoreaction of benzamide have been proposed.3. Total of seven N-chloro(phenylmethylenebenzenamines with different substituted groups and sixty-one thiourea derivatives have been synthesized and structurally characterized.
论文的主要内容如下:1、简要介绍本论文工作的研究背景,并对苯甲酰胺和具有硫脲官能团类化合物的光化学研究进展进行简要的总结。2、合成与表征了14个具有不同取代基的苯甲酰胺类化合物,利用紫外光谱和气相色谱确定了此类化合物较佳光照时间,测定了一个具有代表性光解产物的单晶结构,提出了苯甲酰胺类化合物的光反应机理。3、合成与表征了7个带有不同取代基的氯代苯甲酰亚胺中间体及61个硫脲衍生物,测定了两个具有代表性化合物的单晶结构。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力