Synthesis and properties of substituted [3-(2-hydroxyphenyl)-1H-1,2,4-triazol-1-yl]acetonitriles
摘要:
Alkylation of 3-substituted 5-(2-hydroxyphenyl)-1H-1,2,4-triazoles with chloroacetonitrile gave hitherto unknown N-cyanomethyl derivatives whose structure was determined by X-ray analysis and (1)H and (13)C NMR spectroscopy. Condensation of substituted [3-(2-hydroxyphenyl)-1H-1,2,4-triazol-1-yl]acetonitriles at the activated methylene group with acetone led to the formation of new 3-methyl-2-triazolylbut-2-enenitrile derivatives.
Template-Hopping Approach Leads to Potent, Selective, and Highly Soluble Bromo and Extraterminal Domain (BET) Second Bromodomain (BD2) Inhibitors
作者:Helen E. Aylott、Stephen J. Atkinson、Paul Bamborough、Anna Bassil、Chun-wa Chung、Laurie Gordon、Paola Grandi、James R. J. Gray、Lee A. Harrison、Thomas G. Hayhow、Cassie Messenger、Darren Mitchell、Alexander Phillipou、Alex Preston、Rab K. Prinjha、Francesco Rianjongdee、Inmaculada Rioja、Jonathan T. Seal、Ian D. Wall、Robert J. Watson、James M. Woolven、Emmanuel H. Demont
DOI:10.1021/acs.jmedchem.0c02156
日期:2021.3.25
describing the discovery and optimization of bromo and extraterminal inhibitors which are selective for the second bromodomain (BD2); these include our own work toward GSK046 (3) and GSK620 (5). This paper describes our approach to mitigating the genotoxicity risk of GSK046 by replacement of the acetamide functionality with a heterocyclic ring. This was followed by a template-hopping and hybridization approach
Magnetic relaxation in a Co(<scp>ii</scp>) chain complex: synthesis, structure, and DFT computational coupling constant
作者:Wen-Hao Wu、Ya-Qun Wang、Hong-Li Mi、Qing-Xuan Xue、Feng Shao、Fei Shen、Feng-Lei Yang
DOI:10.1039/d0ce01662d
日期:——
two types of Co(II) ions, octahedral and tetrahedral, bridged by three types of linkers (μ-Cl, μ-(N–N), μ-O), extend into 1D chains. Additionally, the interchain connections are weak, facilitating the occurrence of single-chain magneticbehavior. Magnetically, considerable frequency dependence of slow magnetic relaxation is observed below 5 K and the compound behaves like a single-chain magnet. Both
一种新颖的高自旋的Co(II)络合物,命名为[CO II 2(μ-L 1)(μ-L 2)(μ-Cl)的CL] Ñ(1)中,通过Co的反应来实现(II)具有两种吡唑酸酯配体的盐(HL 1 = 2-(5-甲基-1 H-吡唑-3-基)吡啶; HL 2 = 2-(5-甲基-4 H -1,2,4-三唑- 3-yl)phenol)的溶剂热法。从结构上讲,两种类型的Co(II)八面体和四面体离子通过三种类型的连接体(μ-Cl,μ-(N–N),μ-O)桥接,延伸到一维链中。另外,链间连接较弱,有利于单链磁行为的发生。磁性方面,在5 K以下观察到慢速磁弛豫的明显频率依赖性,该化合物的行为类似于单链磁体。无论是从耦合常数的模拟χ中号Ť与T的关系曲线和DFT运算显示,在共同的μ-O接头2 ö 2系统发送铁磁耦合。
Reactions of hydroxyphenyl-substituted 1,2,4-triazoles with electrophylic reagents
作者:E. Yu. Shasheva、N. I. Vikrishchuk、L. D. Popov、A. D. Vikrishchuk、I. E. Mikhailov、K. A. Lysenko、M. E. Kletskii
DOI:10.1134/s1070363209100259
日期:2009.10
Reactions of hydroxyphenyl substituted 1,2,4-triazoles with various electrophylic reagents were studied. Despite of the presence of several nucleophilic centers in the molecule, the reactions were shown to proceed regioselectively, with the formation of N-substituted 3-(2-hydroxyphenyl)-1,2,4-triazoles. As a result of the reactions of alkylation, tosylation, sulfoamination and aminomethylation by Mannich reaction earlier unknown potential biologically active N-derivatives of 1,2,4-triazole were obtained.
Synthesis of 3-(2-hydroxyphenyl)-1,5-dialkyl-1H-1,2,4-triazoles and their Zn(II) complexes
作者:I. E. Mikhailov、N. I. Vikrishchuk、L. D. Popov、A. D. Beldovskaya、G. A. Dushenko、Yu. V. Revinskii、V. I. Minkin
DOI:10.1134/s0012500817020045
日期:2017.2
It has been demonstrated by C-13 NMR and quantum-chemical calculations that alkylation of 5-(2-hydroxyphenyl)-3-methyl(vinylphenyl)-1H-1,2,4-triazoles with dialkyl sulfates in aqueous DMSO in the presence of alkali occurs exclusively in the 2-position of the triazole ring to give 3-(2-hydroxyphenyl)-1,5-dialkyl(alkylvinylphenyl)-1H-1,2,4-triazoles. Emission spectra of these compounds show two weak bands (lambda(fl)(max) = 317-346 and 430-447 nm, phi = 0.002-0.007), whereas their zinc complexes emit in the violet range of the visible spectrum (lambda(fl)(max) = 373-377 nm, phi = 0.20-0.25).