吡啶基

Three novel rigid compounds 3, 6-bis[2-(4-pyridylethenyl]-9-ethylcarbazole (L~1), 3,6-bis[2-(2-pyridyl)ethenyl]-9-ethylcarbazole (L~2), 3,6-bis[2-(4-pyridyl)ethenyl]-9 -ethylpyridylcarbazole (L~3) were successfully synthesized by Heck reaction, which were fully characterized by elemental analyses, NMR, MS, IR spectra and single X-ray diffraction analysis.

利用Heck偶联反应，成功地合成了三种新型刚性的吡啶基咔唑类化合物：3，6-二[2-(4-吡啶基)乙烯基]-9-乙基咔唑(L~1)，3，6-二[2-(2-吡啶基)乙烯基]-9-乙基咔唑(L~2)和3，6-二[2-(4-吡啶基)吡啶基]-9-乙基吡啶基咔唑(L~3)，通过元素分析、核磁共振谱、质谱、红外光谱和单晶X-射线衍射等分析手段确证了它们的结构。

In order to find biologically active urea compounds,seven new N-[5-(3-pyridyl)-1,3,4-thiadiazol-2-yl]-N'- urea derivatives were synthesized by the reaction of 2-amino-5-(3-pyridyl)-1,3,4-thiadiazole with aroylazides,which were prepared starting from carboxylic acids,ethyl chloroformate and sodium azide by one-pot procedure.

为了寻找高生物活性的脲类化合物，通过2-氨基-5-(3-吡啶基)-1，3，4-噻二唑与酰基叠氮化物反应，设计合成了7个新的N-[5-(3-吡啶基)-1，3，4-噻二唑-2-基]-N'-取代苯基脲，其中芳酰基叠氮化物是以芳酸、氯甲酸乙酯、叠氮化钠为起始原料采用&一锅法&所制得。

R-1,c-2, t-3, t-4-1,3-bis(4-biphenyl)-2,4-di(4-pyridyl)cyclobutane was obtained in diluted sulfuric acid by photodimerization reaction.

通过反-1-(4-联苯基)-2-(4-吡啶基)乙烯在稀硫酸中的光二聚反应合成了r-1，c-2，t-3，t-4-1，3-双(4-联苯基)-2，4-二(4-吡啶基)环丁烷。

The synthesis, crystal structure and characterization of 4, 5-dimethyl-2-(2-pyridyl) imidazole were reported.

为了制备研究2-取代咪唑配合物，设计合成了4， 5-二甲基-2-（2-吡啶基）咪唑，用IR、MS、1H-NMR对其结构进行了确证，并对其晶体结构进行了分析。

Two kinds of dsDNA intercalating fluorescent dyes, [Ru2]2+(phen = 1,10-phenanlinthroline; dppz = dipyrido [3,2-a:2',3'-c] phenazine) and BOBO-3 2,2\'-1,3-propanediylbis[(dimethyliminio-3,1-propanediyl -1(4H)-pyridinyl-4-ylidenemethy-lidynebis[3-methyl]-benzothiazoe were employed in this chapter, and two non-covalent labeled fluorescence sensing systems for thrombin determination were successfully developed and compared based on its 29-mer aptamer.

本章利用dsDNA嵌入式荧光染料[Ru2]2+(phen = 1，10-二氮菲； dppz =吡啶[3，2-a：2'，3'-c]吩嗪)及BOBO-32，2\'-1，3-丙二基二[(二甲基亚氨基-3，1-丙二基-1(4H)-吡啶基-4-(丙-1，3-二烯基二[3-甲基]-苯并噻唑)，基于适配体29-mer，分别建立了两种凝血酶检测体系[Ru(phen2]2+及BOBO-3检测体系。

Ethyl-4-phenyl-5-(2-pyridyl)-1,2,4-triazole was synthesized by several-step reactions fromα-picoline, and was confirmed by IR、1H-NMR and MS spectra. Part II.

以α-甲基吡啶为原料，经多步反应合成了3-乙基-4-苯基-5-(2-吡啶基)-1，2，4-三唑，并用红外光谱、1H-NMR谱及质谱对产物进行了确证。

The influences of different organic bridging ligands pyrazine,2-pyrazinecarboxylate,4,4′-bipyridine and 1,2-bis(4-pyridyl)ethane on the cobalt vanadate system were explored.

同时还研究了不同的有机桥式配体吡嗪、2-吡嗪羧酸、4，4′-联吡啶和1，2-联(4-吡啶基)乙烷在钴钒体系中的作用。

Polarization measurements showed that HBPT can inhibit the anodic reactions of the copper in 0.5mol/L H2SO4 and accelerate the cathodal reactions and act as a kind of anodic inhibitor.

极化曲线研究表明3，5-二（2-吡啶基）－1，2，4-三唑在0.5mol/L硫酸溶液中对铜的阳极反应起抑制作用，对铜的阴极反应起促进作用，属於阳极型缓蚀剂。

Resonance Raman spectra of aggregated meso-tetra(4-pyridinium)porphyrin diacid (H8TPyP6+)were studied with excitation near the exciton absorption bands of 470 nm.

研究了近激子吸收带激发下四-(4-吡啶基)卟啉二酸(H8TPyP6+)聚集体的共振拉曼光谱。

NAA, CPPU and EBR all induced parthenocarpic growth together with active cell division and enhanced transcripts of cell cycle-related genes.

奈乙酸，N-(2-氯-4-吡啶基)-N-苯基脲和表油菜素内酯都能诱导黄瓜单性结实，加快细胞分裂和提高细胞周期相关基因的表达。

I'm going tor her!

我这就去救她！

As rise are design to help keep a several toney , a brain chemical at continues lever.

SSRI被设计来帮助保持血液中的复合胺即在大脑中一个连续水平的化学物质。