三唑并吡啶是一类重要的生物活性杂环化合物。在这封信中,我们描述了一种从2-肼基吡啶和羧酸开始合成[1,2,4]三唑并[4,3- a ]吡啶的新方法。使用Lawesson试剂在关键步骤中将生成的乙酰肼进行环化。探索了反应条件以及该反应的范围,涉及三唑并吡啶环的3位上的取代基。我们还证明,在杂环的α位上存在手性碳时,这种杂环化是无消旋作用的。
REDDA K.; CORLETO L. A.; KNAUS E. E., J. MED. CHEM., 1979, 22, NO 9, 1079-1082
作者:REDDA K.、 CORLETO L. A.、 KNAUS E. E.
DOI:——
日期:——
[EN] INHIBITORS OF HISTONE DEMETHYLASES (PFI-63 AND PFI-90) FOR THE TREATMENT OF CANCER AND FOR THE INHIBITION OF HISTONE DEMETHYLASE IN CELLS<br/>[FR] INHIBITEURS D'HISTONES DÉMÉTHYLASES (PFI-63 ET PFI-90) POUR LE TRAITEMENT DU CANCER ET POUR L'INHIBITION DE L'HISTONE DÉMÉTHYLASE DANS DES CELLULES
申请人:US HEALTH
公开号:WO2021101929A1
公开(公告)日:2021-05-27
The invention provides methods and compositions involving the compounds N'-(3,5-dimethylbenzoyl)picolinohydrazide; N'-(pyrid in-2- yl)picolinohydrazide or pharmaceutically acceptable salts thereof for inhibiting the function of histone demethylases in vivo and in vitro, as well as methods for treating cancer comprising the administration of such compositions.
Route to Benzo- and Pyrido-Fused 1,2,4-Triazinyl Radicals via <i>N</i>′-(Het)aryl-<i>N</i>′-[2-nitro(het)aryl]hydrazides
作者:Andrey A. Berezin、Georgia Zissimou、Christos P. Constantinides、Yassine Beldjoudi、Jeremy M. Rawson、Panayiotis A. Koutentis
DOI:10.1021/jo402481t
日期:2014.1.3
involves the N′-(2-nitroarylation) of easily prepared N′-(het)arylhydrazides via nucleophilic aromatic substitution of 1-halo-2-nitroarenes, which in most cases gives N′-(het)aryl-N′-[2-nitro(het)aryl]hydrazides in good yields. Mild reduction of the nitro group followed by an acid-mediated cyclodehydration gives the fused triazines, which upon alkali treatment afford the desired radicals. Fifteen examples
Convenient two-step preparation of [1,2,4]triazolo[4,3-a]pyridines from 2-hydrazinopyridine and carboxylic acids
作者:Aline Moulin、Jean Martinez、Jean-Alain Fehrentz
DOI:10.1016/j.tetlet.2006.08.075
日期:2006.10
Triazolopyridines are an important class of biologically active heterocyclic compounds. In this letter, we describe a new method for the synthesis of [1,2,4]triazolo[4,3-a]pyridines starting from 2-hydrazinopyridine and carboxylic acids. The resulting acetohydrazides are cyclized in a key step using the Lawesson’s reagent. The reaction conditions were explored, as well as the scope of this reaction
三唑并吡啶是一类重要的生物活性杂环化合物。在这封信中,我们描述了一种从2-肼基吡啶和羧酸开始合成[1,2,4]三唑并[4,3- a ]吡啶的新方法。使用Lawesson试剂在关键步骤中将生成的乙酰肼进行环化。探索了反应条件以及该反应的范围,涉及三唑并吡啶环的3位上的取代基。我们还证明,在杂环的α位上存在手性碳时,这种杂环化是无消旋作用的。