查询词典 imidazole

The crystal was obtained from the interaction system, NH4VO3/H2O2/ 2-(2′-pyridyl)imidazole, in aqueous solution under the physiological conditions, and the complex was characterized by solution NMR, IR, X-ray crystal diffraction and elementary analysis.

经NMR、IR、X-ray衍射和元素分析等谱学方法或分析手段确定其组成[NH4{OV(O2)2{2-(2′-Py)-Imi}·4H2O}]和结构，其51V的化学位移在单核双过氧钒化合物中是最大的。

A new diperoxovanadate crystal NH4{OV(O2)2{2-(2′-pyridyl)-imidazole}}·4H2O was synthesized.

在相互作用体系NH4VO3/H2O2/2-(2′-Py)Imi中合成了一种新的双过氧钒化合物。

Bis (P—bromobenzylamino) ethane and 1,2—bis (m—Iodobenzylamino) ethane may be prepared by condensation of the corresponding halo benzaldehyde with ethylenediamine and followed by catalytic hydrogenation of the Schiff's bases over Pto_2 in glacial acetic acid solutions: Both Ⅱa and Ⅱb may react in neutral mediam with aldehydes to form well—defined crystalline tetrahydro—imidazole, which may be served as derivatives of identification for aldehydes: Under the same condition, however,Ⅱb may ...

用1，2-二乙烷与二十余种醛类作用，得到有固定熔点的晶体衍生物，它们的熔点分布在85—210℃之间，产率为40—96％，这试剂与甲基酮类在相同条件下无反应，因此，它可作为鉴定醛类的专属试剂。 2。上述衍生物用稀盐酸在室溫处理，能发生水解，可以定量地收回原来的醛，因此这试剂又可作为分离醛类的试剂。 3。上述衍生物可以用非水滴定法半微量地测定其分子量可作为鉴定醛类的另一项参考数据。 4.1，2-二乙烷与醛类能生成晶体衍生物，但这试剂也与甲基酮在同样条件下发生反应，所以不适合作为鉴定醛类的专属试剂。

Author had started the research on design and synthesis of heterocycles several years ago, mainly focused on the design and synthesis of imidazole, thiazole, tetrazole derivatives and their glucosides, in which most of them may have some particular bioactivities.

本论文主要是围绕具有生理活性含氮杂环化合物的设计与合成而展开的，在论文工作中我们应用液相&一锅法&和固相组合化学方法进行了咪唑环、噻唑环、四氮唑环等具有生理活性的杂环化合物及其糖苷的合成。

N-heterocyclic compounds, such as indole, imidazole, 2-methylimidazole, 2-ethylimidazole, pyrrole and pyrrolidine, could be effectively N-methylated with DMC in the presence of 1-n-butyl-3-methylimidazolium chlorid.

吲哚、咪唑、2-甲基咪唑、2-乙基咪唑、吡咯和四氢吡咯等含氮杂环化合物在氯化1-正丁基-3-甲基咪唑的催化下能被DMC有效地N-甲基化。

The 50s and 70s helixes became shorter and were distorted in imidazole cytochrome c.

Im·cyt c中的50s和70s螺旋均已变短，其中50s螺旋向310螺旋扭曲。

Ketoconazole is an imidazole antifungal agent with a broad spectrum of activity against systemic and superficial mycoses.

酮康唑(Ketoconazole，KCZ)属于咪唑类抗真菌药物，对深部真菌和浅表真菌感染均有作用。

The 60s helix spaned from Glu-61 to Tyr-67 in imidazole cytochrome c while it spaned from Glu-61 to Glu-69 in cytochrome c.

与cyt c中的60s螺旋延伸到Glu-69情况不同，在Im·cyt c中60s螺旋仅延伸到Tyr-67。

With the aid of 〓P NMR examination for the process and ESI-MS/MS analysis of the derivatized products from the reaction intermediate, it is found that the corresponding phosphoryl chloride is generated after mixing the hydrogen phosphonate derivative with chlorodiisopropylamine, and they react with amino acid, amino acid methyl ester, dipeptide methyl ester or N-methyl imidazole carboxyl alkyl diamine respectively to form the desired products.

利用〓P NMR对反应过程监测以及对反应中间体衍生化后产物的ESI-MS／MS检测分析发现，氢亚磷酸二酯与氯代二异丙胺反应首先生成了磷酰氯中间产物，它继续与氨基酸、氨基酸甲酯、二肽甲酯、1-甲基咪唑-2-酰基烷基二胺等反应生成了目标产物。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。