Heterocyclization of 1-aryl/alkyl-2-thiobiureas to 4-aryl/alkyl-3-substituted-Δ 2 -1,2,4-triazolin-5-ones
作者:M.M Suni、Vipin A Nair、C.P Joshua
DOI:10.1016/s0040-4020(01)00018-7
日期:2001.3
Synthesis of a range of 1,2,4-triazolin-5-ones has been carried out by thermally induced cyclization of 1-aryl/alkyl-2-alkyl isothiobiureas 4. The required isothiobiureas were generated in situ by the reaction of alkyl halides with 1-aryl/alkyl-2-thiobiureas 3 in acidic medium at reflux. The reaction proceeds after S-alkylation of the thiobiureas and is demonstrated by the isolation of the alkyl isothiobiurea intermediates and their subsequent acid catalyzed thermal cyclization. (C) 2001 Elsevier Science Ltd. All rights reserved.
Design, Synthesis, and Structure−Activity Relationship of Substrate Competitive, Selective, and in Vivo Active Triazole and Thiadiazole Inhibitors of the c-Jun N-Terminal Kinase
作者:Surya K. De、John L. Stebbins、Li-Hsing Chen、Megan Riel-Mehan、Thomas Machleidt、Russell Dahl、Hongbin Yuan、Aras Emdadi、Elisa Barile、Vida Chen、Ria Murphy、Maurizio Pellecchia
DOI:10.1021/jm801503n
日期:2009.4.9
We report comprehensive structure−activityrelationship studies on a novel series of c-Jun N-terminal kinase (JNK) inhibitors. The compounds are substrate competitive inhibitors that bind to the docking site of the kinase. The reported medicinal chemistry and structure-based optimizations studies resulted in the discovery of selective and potent thiadiazole JNK inhibitors that display promising in
我们报告了一系列新型 c-Jun N 末端激酶 (JNK) 抑制剂的综合构效关系研究。这些化合物是与激酶对接位点结合的底物竞争性抑制剂。报道的药物化学和基于结构的优化研究导致发现了选择性和有效的噻二唑 JNK 抑制剂,这些抑制剂在胰岛素不敏感的小鼠模型中显示出有希望的体内活性。