Utilization of 2-Chloronicotinonitrile in the Syntheses of Novel Fused Bicyclic and Polynuclear Heterocycles of Anticipated Antitumor Activity
作者:Wafaa S. Hamama、Mohamed A. Waly、Ibrahim I. El-Hawary、Hanafi H. Zoorob
DOI:10.1002/jhet.1631
日期:2016.5
pyridine scaffold were tested as in vitro antitumor agents, and these compounds found to exhibit interesting activities. Fused heterocycles containing sulfur such as thienopyridine, pyridothiazine, and some related fused heterocycles as new ring systems were achieved. Bicyclic thienopyridine 6 and pyrido[3,2‐e][1,3]thiazin‐4(3H)‐one 7 exhibited good antitumoractivities compared with 5‐fluorouracil.
测试了一些基于吡啶骨架的合成双环和多核杂环化合物作为体外抗肿瘤药,发现这些化合物表现出令人感兴趣的活性。实现了含硫的稠合杂环,如噻吩并吡啶,吡啶噻嗪和一些相关的稠合杂环作为新的环系统。与5-氟尿嘧啶相比,双环噻吩并吡啶6和吡啶并[3,2- e ] [1,3]噻嗪-4(3 H)-one 7具有良好的抗肿瘤活性。
Spectrophotometric Investigation of the Role of Organic Solvents in the Ionization of Azo Dyes Derived from Thienopyridine
作者:Nasr M. Rageh、Elham M. Abdallah
DOI:10.1021/je030153c
日期:2003.11.1
different organic solvent + water mixtures on the acidity constants of some azothienopyridine derivatives were studied. The organic solvents used are methanol, ethanol, acetone, and dimethylformamide. The results obtained are discussed in terms of the solvent characteristics. The pKa values of the dyes studied were determined and found to depend largely on both the amount and nature of the organic cosolvent
研究了不同的有机溶剂+水的混合物对某些偶氮噻吩并吡啶衍生物的酸度常数的影响。使用的有机溶剂是甲醇,乙醇,丙酮和二甲基甲酰胺。根据溶剂特性讨论了获得的结果。确定了所研究的染料的p K a值,发现该值主要取决于有机助溶剂的量和性质。共轭碱与溶剂分子的氢键相互作用以及溶剂的碱性对电离过程起主要作用。讨论了偶氮化合物分子结构对p K a值的影响。
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作者:A. M. Shestopalov、O. A. Naumov
DOI:10.1023/a:1024835412937
日期:——
4,6-Dimethyl-2H-thieno[2,3-b]pyridin-3-one reacts with 2-aryl-1,1-dicyanoethylenes or an aromatic aldehyde/ketone (cyclohexanone and piperidone derivatives) and malononitrile to give substituted 2-amino-3-cyano-7,9-dimethyl-4H-pyrano[2',3':4,5]thieno[2,3-b]pyridines.
Gossauer,A. et al., Liebigs Annalen der Chemie, 1979, p. 1309 - 1321
作者:Gossauer,A. et al.
DOI:——
日期:——
Guerrera; Siracusa; Tornetta, Farmaco, Edizione Scientifica, 1976, vol. 31, # 1, p. 21 - 30