A facile synthesis of 3,5-halo and aryl 1H-pyridin-2-ones from pyridinium N-(pyridin-2-yl)aminide
摘要:
The synthesis of halogenated and arylated 1H-pyridin-2-ones starting from pyridinium N-(pyridin-2-yl)aminides is described. The synthetic pathway involves the reaction of pyridinium N-(5-bromopyridin-2-yl)aminide, N-(3-bromo-5-chloropyridin-2-yl)aminide or N-(3,5-dibromopyridin-2-yl)aminide with different boronic acids to afford monosubstituted and disubstituted aminides in good yields. An additional bromination in the 3-position of N-(5-arylpyridin-2-yl)aminides was performed. Finally, reduction of the N-N bond followed by the reaction of the corresponding 2-aminopyridines with sodium nitrite/sulfuric acid in water yields 3,5-disubstituted 1H-pyridin-2-ones in good yields. (C) 2013 Elsevier Ltd. All rights reserved.
已经进行了2-氨基-1-甲基-6-苯基咪唑并[4,5- b ]吡啶(PhIP),三个结构异构体和两个去苯基PhIP同类物的合成。使用鼠伤寒沙门氏菌菌株TA98在Ames试验中评估致突变力。与这些杂环胺中的结构特征相关的致突变力增加,从而允许苯基和咪唑并[4,5- b ]吡啶N 2-氨基取代基之间的共振延长。相比之下,PhIP异构体的取代不允许苯基参与其氨基咪唑共鸣杂合体,而去苯基同类物的诱变性比PhIP低86-234倍。
Scaffold-Hopping Strategy on a Series of Proteasome Inhibitors Led to a Preclinical Candidate for the Treatment of Visceral Leishmaniasis
作者:Michael Thomas、Stephen Brand、Manu De Rycker、Fabio Zuccotto、Iva Lukac、Peter G. Dodd、Eun-Jung Ko、Sujatha Manthri、Kate McGonagle、Maria Osuna-Cabello、Jennifer Riley、Caterina Pont、Frederick Simeons、Laste Stojanovski、John Thomas、Stephen Thompson、Elisabet Viayna、Jose M. Fiandor、Julio Martin、Paul G. Wyatt、Timothy J. Miles、Kevin D. Read、Maria Marco、Ian H. Gilbert
DOI:10.1021/acs.jmedchem.1c00047
日期:2021.5.13
a compound with in vivo efficacy, which was hampered by poor solubility and genotoxicity. The work on the original scaffold failed to lead to developable compounds, so an extensive scaffold-hopping exercise involving medicinal chemistry design, in silico profiling, and subsequent synthesis was utilized, leading to the preclinical candidate. The compound was shown to act via proteasome inhibition, and
Certain Nitrogen Containing Bicyclic Chemical Entities For Treating Viral Infections
申请人:Schmitz Franz Ulrich
公开号:US20120121540A1
公开(公告)日:2012-05-17
Provided are certain chemical entities, pharmaceutical compositions, and methods of treatment of a member of the flaviviradae family of viruses such as hepacivirus (Hepatitis C or HCV).
Disclosed are substituted imidazo[1,2-a]pyridines, imidazo[1,2-a]pyrazines, imidazo[1,2-c]pyrimidines and imidazo[1,2-d]triazines compounds of the formula: (1.0) Also disclosed are methods for treating JNK1 and ERK mediated diseases using the compounds of formula 1.0.
Certain nitrogen containing bicyclic chemical entities for treating viral infections
申请人:Schmitz Franz Ulrich
公开号:US20090176778A1
公开(公告)日:2009-07-09
Provided are certain chemical entities, pharmaceutical compositions, and methods of treatment of a member of the flaviviradae family of viruses such as hepacivirus (Hepatitis C or HCV).