[EN] 5- OR 7-AZAINDAZOLES AS BETA-LACTAMASE INHIBITORS<br/>[FR] AZAINDAZOLES EN 5 OU 7 UTILISÉS COMME INHIBITEURS DE BÊTA-LACTAMASE
申请人:ACRAF
公开号:WO2020178316A1
公开(公告)日:2020-09-10
The present invention relates to β-lactamase inhibitors having the following general formula (I): wherein R1-R4 and X1-X2 are defined in the specification, pharmaceutical composition thereof, and use thereof for the treatment of a bacterial infection, alone or in combination with β-lactam antibiotics and/or other antibiotics and/or other β-lactamase inhibitors.
Synthesis and Structure–Activity Relationship of Dual-Stage Antimalarial Pyrazolo[3,4-<i>b</i>]pyridines
作者:Scott Eagon、Jared T. Hammill、Martina Sigal、Kevin J. Ahn、Julia E. Tryhorn、Grant Koch、Briana Belanger、Cory A. Chaplan、Lauren Loop、Anna S. Kashtanova、Kenya Yniguez、Horacio Lazaro、Steven P. Wilkinson、Amy L. Rice、Mofolusho O. Falade、Rei Takahashi、Katie Kim、Ashley Cheung、Celine DiBernardo、Joshua J. Kimball、Elizabeth A. Winzeler、Korina Eribez、Nimisha Mittal、Francisco-Javier Gamo、Benigno Crespo、Alisje Churchyard、Irene García-Barbazán、Jake Baum、Marc O. Anderson、Benoît Laleu、R. Kiplin Guy
DOI:10.1021/acs.jmedchem.0c01152
日期:2020.10.22
infectious diseases, causing hundreds of thousands of deaths each year, primarily in young children and pregnant mothers. Here, we report the discovery and derivatization of a series of pyrazolo[3,4-b]pyridines targeting Plasmodium falciparum, the deadliest species of the malaria parasite. Hit compounds in this series display sub-micromolar in vitro activity against the intraerythrocytic stage of the
疟疾仍然是最致命的传染病之一,每年导致成千上万的死亡,主要是在幼儿和孕妇中。在这里,我们报道了针对恶性疟原虫(疟疾最致命的物种)的一系列吡唑并[3,4- b ]吡啶的发现和衍生化。该系列中的命中化合物在体外显示出亚微摩尔对寄生虫的红细胞内阶段具有高活性,对人成纤维细胞BJ和肝HepG2细胞系几乎没有毒性。此外,我们的命中化合物对寄生虫的肝期表现出良好的活性,但对配子体阶段的活性却很小。包括杀死率,对接率和分子动力学研究在内的寄生虫学资料表明,我们的化合物可能靶向细胞色素bc 1的Q o结合位点。
Palladium-Catalyzed Carbonylation with Mo(CO)6 for the Synthesis of Benzoylacetonitriles
作者:Sunwoo Lee、Ayoung Pyo、Ahbyeol Park、Hyun Jung
DOI:10.1055/s-0032-1316760
日期:——
benzoylacetonitriles in moderate to good yields. Benzoylacetonitriles were synthesized by the palladium-catalyzed carbonylation of aryliodides and trimethylsilylacetonitrile usingMo(CO)6 as a carbon monoxide source. Pd(PPh3)Cl2 and CuF2 were employed as the catalyst and activator, respectively. A variety of aryliodides bearing alkyl, alkoxy, fluoro, chloro, bromo, nitrile, ester, and ketone groups afforded
[EN] THIENO [2, 3-B] PYRIDINE DERIVATIVES AS VIRAL REPLICATION INHIBITORS<br/>[FR] DÉRIVÉS DE LA THIÉNO [2, 3-B] PYRIDINE EN TANT QU'INHIBITEURS DE RÉPLICATION VIRALE
申请人:UNIV LEUVEN KATH
公开号:WO2010130842A1
公开(公告)日:2010-11-18
The present invention relates to a series of compounds of formula (A) having antiviral activity, more specifically HIV (Human Immunodeficiency Virus) replication inhibiting properties. The invention also relates to methods for the preparation of such compounds, as well as to novel intermediates useful in one or more steps of such syntheses. The invention also relates to pharmaceutical compositions comprising an effective amount of such compounds as active ingredients. This invention further relates to the use of such compounds as medicines or in the manufacture of a medicament useful for the treatment of animals suffering from viral infections, in particular HIV infection. This invention further relates to methods for the treatment of viral infections in animals by the administration of a therapeutical amount of such compounds, optionally combined with one or more other drugs having anti-viral activity.
Benzoylacetonitrile were prepared through sequential carbonylation and decarboxylation. The palladium-catalyzed carbonylation of aryliodides and methyl cyanoacetate usingMo(CO)6 as a carbon monoxide source afforded beta-keto cyanoesters, and then the subsequent reaction with Li/H2O produced the desired benzoylacetonitriles.
苯甲酰基乙腈是通过顺序羰基化和脱羧制备的。使用Mo(CO)6作为一氧化碳源,钯催化芳基碘化物和氰基乙酸甲酯的羰基化反应,生成β-酮基氰基酯,然后与Li / H 2 O进行后续反应,生成所需的苯甲酰基乙腈。