合成了47种噻吩并[2,3 - b ]吡啶-2-羧酰胺,呋喃并[2,3 - b ]吡啶-2-甲酰胺和四氢噻吩并[2,3 - b ]喹诺酮-2-羧酰胺衍生物,并对其进行了测试。对NCI-60细胞系的抗增殖活性。发现5-酮-四氢噻吩并[2,3- b ]喹诺酮-2-羧酰胺(系列17)活性最高,其中含有3-甲氧基苯基羧酰胺(化合物17d)的化合物活性最高,GI 50对一系列细胞系,特别是黑素瘤细胞系MDA-MD-435(GI 50– 23 nM)和乳腺癌细胞系MDA-MB-468(GI 50 – 46 nM)。针对磷酸肌醇特异性磷脂酶C的系列17的分子模型揭示,氨基酸His356,Glu341,Arg549和Lys438的侧链参与与配体的氢键结合,并且亲脂性口袋被苯基羧酰胺部分占据。
Synthesis and in vitro Evaluation of West Nile Virus Protease Inhibitors Based on the 2-{6-[2-(5-Phenyl-4<i>H</i>-{1,2,4]triazol-3-ylsulfanyl)acetylamino]benzothiazol-2-ylsulfanyl}acetamide Scaffold
作者:Sanjay Samanta、Ting Liang Lim、Yulin Lam
DOI:10.1002/cmdc.201300114
日期:2013.6
NS2B‐NS3 proteaseinhibitor with a 2‐6‐[2‐(5‐phenyl‐4H‐[1,2,4]triazol‐3‐ylsulfanyl)acetylamino]benzothiazol‐2‐ylsulfanyl}acetamide scaffold was identified during screening. Optimization of this initial hit by synthesis and screening of a focused compound library with this scaffold led to the identification of a novel uncompetitive inhibitor (1 a24, IC50=3.4±0.2 μM) of the WNV NS2B‐NS3 protease. Molecular
Synthesis, in Vitro Evaluation and Cocrystal Structure of 4-Oxo-[1]benzopyrano[4,3-<i>c</i>]pyrazole <i>Cryptosporidium parvum</i> Inosine 5′-Monophosphate Dehydrogenase (<i>Cp</i>IMPDH) Inhibitors
作者:Zhuming Sun、Jihan Khan、Magdalena Makowska-Grzyska、Minjia Zhang、Joon Hyung Cho、Chalada Suebsuwong、Pascal Vo、Deviprasad R. Gollapalli、Youngchang Kim、Andrzej Joachimiak、Lizbeth Hedstrom、Gregory D. Cuny
DOI:10.1021/jm501527z
日期:2014.12.26
Cryptosporidiuminosine5′-monophosphatedehydrogenase (CpIMPDH) has emerged as a therapeutic target for treating Cryptosporidium parasites because it catalyzes a critical step in guanine nucleotide biosynthesis. A 4-oxo-[1]benzopyrano[4,3-c]pyrazole derivative was identified as a moderately potent (IC50 = 1.5 μM) inhibitor of CpIMPDH. We report a SAR study for this compound series resulting in 8k
Structure–activity relationship and biological evaluation of 12 N-substituted aloperine derivatives as PD-L1 down-regulatory agents through proteasome pathway
aloperine derivatives were synthesized and screened for suppression on PD-L1 expression in H460 cells, as a continuation of our work. Systematic structural modifications led to the identification of compound 6b as the most active PD-L1 modulator. Compound 6b could significantly down-regulate both constitutive and inductive PD-L1 expression in NSCLC cells, and successively enhance the cytotoxicity of co-cultured
2-(Quinolin-4-yloxy)acetamides Are Active against Drug-Susceptible and Drug-Resistant <i>Mycobacterium tuberculosis</i> Strains
作者:Kenia Pissinate、Anne Drumond Villela、Valnês Rodrigues-Junior、Bruno Couto Giacobbo、Estêvão Silveira Grams、Bruno Lopes Abbadi、Rogério Valim Trindade、Laura Roesler Nery、Carla Denise Bonan、Davi Fernando Back、Maria Martha Campos、Luiz Augusto Basso、Diógenes Santiago Santos、Pablo Machado
DOI:10.1021/acsmedchemlett.5b00324
日期:2016.3.10
described as potent in vitro inhibitors of Mycobacterium tuberculosis growth. Herein, additional chemical modifications of lead compounds were carried out, yielding highly potent antitubercular agents with minimum inhibitory concentration (MIC) values as low as 0.05 muM. Further, the synthesized compounds were active against drug-resistant strains and were devoid of apparent toxicity to Vero and HaCat
SAR and identification of 2-(quinolin-4-yloxy)acetamides as Mycobacterium tuberculosis cytochrome bc<sub>1</sub> inhibitors
作者:Narisa Phummarin、Helena I. Boshoff、Patricia S. Tsang、James Dalton、Siouxsie Wiles、Clifton E. Barry 3rd、Brent R. Copp
DOI:10.1039/c6md00236f
日期:——
A previous phenotypic screen by GSK identified 2-(quinolin-4-yloxy)acetamides as potent growth inhibitors of Mycobacterium tuberculosis (Mtb). We report the results of a preliminary structure-activity relationship (SAR) study of the compound class which has yielded more potent inhibitors. An Mtb cytochrome bd oxidase deletion mutant (cydKO) was found to be hypersensitive to most members of the compound