A general and efficient synthesis of 4-substituted-1H-pyrazole-3,5-diamines was developed to access derivatives with an aryl, heteroaryl, or styryl group, which are otherwise relatively difficult to prepare. The first step is based on the Suzuki–Miyaura cross-coupling reaction utilizing the XPhos Pd G2 precatalyst. The coupling reactions of 4-bromo-3,5-dinitro-1H-pyrazole with the electron-rich/deficient
Structure–Activity Relationships of Pyrazolo[1,5-<i>a</i>]pyrimidin-7(4<i>H</i>)-ones as Antitubercular Agents
作者:Sangmi Oh、M. Daben J. Libardo、Shaik Azeeza、Gary T. Pauly、Jose Santinni O. Roma、Andaleeb Sajid、Yoshitaka Tateishi、Caroline Duncombe、Michael Goodwin、Thomas R. Ioerger、Paul G. Wyatt、Peter C. Ray、David W. Gray、Helena I. M. Boshoff、Clifton E. Barry
DOI:10.1021/acsinfecdis.0c00851
日期:2021.2.12
various modes of action against Mycobacterium tuberculosis (Mtb). We explored this scaffold through the synthesis of a focused library of analogues and identified key features of the pharmacophore while achieving substantial improvements in antitubercular activity. Our best hits had low cytotoxicity and showed promising activity against Mtb within macrophages. The mechanism of action of these compounds
Pyrazolo[1,5 - a ]pyrimidin-7(4 H )-one 通过高通量全细胞筛选被鉴定为潜在的抗结核药物。该支架的核心之前已被多次鉴定,并且与抗结核分枝杆菌( Mtb ) 的各种作用模式有关。我们通过合成一个集中的类似物库探索了这种支架,并确定了药效团的关键特征,同时实现了抗结核活性的显着改善。我们的最佳产品具有低细胞毒性,并显示出对Mtb的有希望的活性巨噬细胞内。这些化合物的作用机制与细胞壁生物合成、异戊二烯生物合成或铁吸收无关,正如其他具有这种核心结构的化合物所发现的那样。黄素腺嘌呤二核苷酸 (FAD) 依赖性羟化酶 (Rv1751) 的突变赋予了对这些化合物的抗性,该羟化酶通过分子氧的羟基化促进化合物分解代谢。我们的结果强调了化学聚集的风险,但没有建立化学相关生长抑制剂的机制相似性。
[EN] PYRAZOLOPYRIMIDINONE COMPOUNDS AND USES THEREOF<br/>[FR] COMPOSÉS DE PYRAZOLOPYRIMIDINONE ET LEURS UTILISATIONS
申请人:ADURO BIOTECH INC
公开号:WO2019055750A1
公开(公告)日:2019-03-21
The present invention relates to pyrazolopyrimidinone compounds. The present invention also relates to pharmaceutical compositions containing these compounds and methods of treating autoimmune, inflammatory, and neurodegenerative diseases by administering these compounds and pharmaceutical compositions to subjects in need thereof. The present invention also relates to the use of such compounds for research or other non-therapeutic purposes.
The invention provides novel inhibitors of IAP that are useful as therapeutic agents for treating malignancies where the compounds have the general formula (I), and G, X
1
, X
2
, R
1
, R
2
, R
3
, R
4
, R
4
′, R
5
, R
a
, R
b
, and R
c
are as described herein.
The invention provides novel inhibitors of IAP that are useful as therapeutic agents for treating malignancies where the compounds have the general formula I:
wherein X, Y, A, R
1
, R
2
, R
3
, R
4
, R
4
′, R
5
, R
5
′, R
6
and R
6
′ are as described herein.