Dual-Stage Picolinic Acid-Derived Inhibitors of Toxoplasma gondii.

abstract：:General control nonderepressible 2 (GCN2) is a master regulator kinase of amino acid homeostasis and important for cancer survival in the tumor microenvironment under amino acid depletion. We initiated studies aiming at the discovery of novel GCN2 inhibitors as first-in-class antitumor agents and conducted modificatio...

journal_title：ACS medicinal chemistry letters

authors： Fujimoto J,Kurasawa O,Takagi T,Liu X,Banno H,Kojima T,Asano Y,Nakamura A,Nambu T,Hata A,Ishii T,Sameshima T,Debori Y,Miyamoto M,Klein MG,Tjhen R,Sang BC,Levin I,Lane SW,Snell GP,Li K,Kefala G,Hoffman ID,Ding

更新日期：2019-09-19 00:00:00

abstract：:We present the discovery and optimization of a novel series of inhibitors of bacterial UDP-N-acetylglucosamine 2-epimerase (called 2-epimerase in this paper). Starting from virtual screening hits, the activity of various inhibitory molecules was optimized using a combination of structure-based and rational design appr...

journal_title：ACS medicinal chemistry letters

authors： Xu Y,Brenning B,Clifford A,Vollmer D,Bearss J,Jones C,McCarthy V,Shi C,Wolfe B,Aavula B,Warner S,Bearss DJ,McCullar MV,Schuch R,Pelzek A,Bhaskaran SS,Stebbins CE,Goldberg AR,Fischetti VA,Vankayalapati H

更新日期：2013-12-12 00:00:00

abstract：:Computer-aided drug design could benefit from a greater understanding of how errors arise and propagate in biomolecular modeling. With such knowledge, model predictions could be associated with quantitative estimates of their uncertainty. In addition, novel algorithms could be designed to proactively reduce prediction...

journal_title：ACS medicinal chemistry letters

authors： Faver JC,Ucisik MN,Yang W,Merz KM Jr

更新日期：2013-09-12 00:00:00

abstract：:Highly toxic bacterial ionophores are commonly used in veterinary medicine, but their therapeutic index is too narrow for human usage. With the goal of developing ionophores with a broader therapeutic index, we constructed highly derivatized synthetic ionophores. The toxicities of crown ether host-rotaxanes (CEHR's) a...

journal_title：ACS medicinal chemistry letters

authors： Smithrud DB,Wang X,Tarapore P,Ho SM

更新日期：2013-01-10 00:00:00

abstract：:In this paper, we describe the discovery and optimization of a series of noncovalent reversible epidermal growth factor receptor inhibitors of EGFRL858R/T790M/C797S. One of the most promising compounds, 25g, inhibited the enzymatic activity of EGFRL858R/T790M/C797S with an IC50 value of 2.2 nM. Cell proliferation assa...

journal_title：ACS medicinal chemistry letters

authors： Li Q,Zhang T,Li S,Tong L,Li J,Su Z,Feng F,Sun D,Tong Y,Wang X,Zhao Z,Zhu L,Ding J,Li H,Xie H,Xu Y

更新日期：2019-05-22 00:00:00

abstract：:Two rigid analogues of 5-ethylindolobenzazepinone 4, a potent cytotoxic agent and inhibitor of tubulin polymerization, were prepared. The first was the indane derivative 5, in which the ethyl group is attached to the benzo moiety. The second was the pyrrolidine analogue 6, in which the ethyl chain was bound to the lac...

journal_title：ACS medicinal chemistry letters

authors： Pons V,Beaumont S,Tran Huu Dau ME,Iorga BI,Dodd RH

更新日期：2011-06-05 00:00:00

abstract：:Substitution of rigidified A3 adenosine receptor (AR) agonists with a 2-((5-chlorothiophen-2-yl)ethynyl) or a 2-(4-(5-chlorothiophen-2-yl)-1H-1,2,3-triazol-1-yl) group provides prolonged protection in a model of chronic neuropathic pain. These agonists contain a bicyclo[3.1.0]hexane ((N)-methanocarba) ring system in p...

journal_title：ACS medicinal chemistry letters

authors： Tosh DK,Crane S,Chen Z,Paoletta S,Gao ZG,Gizewski E,Auchampach JA,Salvemini D,Jacobson KA

更新日期：2015-05-20 00:00:00

abstract：:Ataluren was reported to suppress nonsense mutations by promoting the readthrough of premature stop codons, although its mechanism of action (MOA) is still debated. The likely interaction of Ataluren with CFTR-mRNA has been previously studied by molecular dynamics. In this work we extended the modeling of Ataluren's M...

journal_title：ACS medicinal chemistry letters

authors： Tutone M,Pibiri I,Lentini L,Pace A,Almerico AM

更新日期：2019-02-07 00:00:00

abstract：:The attachment of lipids to C- or N-terminally positioned lysine side-chain amino groups increases the activity of a short synthetic (Arg-Trp)3 antimicrobial peptide significantly, making these peptides even active against pathogenic Gram-negative bacteria. Thus, a peptide with strong activity against S. aureus (1.1-2...

journal_title：ACS medicinal chemistry letters

authors： Albada HB,Prochnow P,Bobersky S,Langklotz S,Schriek P,Bandow JE,Metzler-Nolte N

更新日期：2012-09-04 00:00:00

abstract：:The identification and lead optimization of a series of pyridopyrimidinone derivatives are described as a novel class of efficacious dual PI3K/mTOR inhibitors, resulting in the discovery of 31. Compound 31 exhibited high enzyme activity against PI3K and mTOR, potent suppression of Akt and p70s6k phosphorylation in cel...

journal_title：ACS medicinal chemistry letters

authors： Yu T,Li N,Wu C,Guan A,Li Y,Peng Z,He M,Li J,Gong Z,Huang L,Gao B,Hao D,Sun J,Pan Y,Shen L,Chan C,Lu X,Yuan H,Li Y,Li J,Chen S

更新日期：2018-02-27 00:00:00

abstract：:Inhibition of phosphoinositide 3-kinase (PI3K) signaling is an appealing approach to treat brain tumors, especially glioblastoma multiforme (GBM). We previously disclosed our successful approach to prospectively design potent and blood-brain barrier (BBB) penetrating PI3K inhibitors. The previously disclosed molecules...

journal_title：ACS medicinal chemistry letters

authors： Heffron TP,Ndubaku CO,Salphati L,Alicke B,Cheong J,Drobnick J,Edgar K,Gould SE,Lee LB,Lesnick JD,Lewis C,Nonomiya J,Pang J,Plise EG,Sideris S,Wallin J,Wang L,Zhang X,Olivero AG

更新日期：2016-02-16 00:00:00

abstract：:Here, we predicted the potential halogen bonding interaction between compound 2 and the 5-hydroxytryptamine 2B (5-HT2B) receptor and systematically assessed this interaction via structure-activity relationship analysis and molecular dynamics simulations. A physics-based computational protocol was then developed to fur...

journal_title：ACS medicinal chemistry letters

authors： Zhou Y,Wang Y,Li P,Huang XP,Qi X,Du Y,Huang N

更新日期：2018-10-01 00:00:00

abstract：:Novel sources of antibiotics are needed to address the serious threat of bacterial resistance. Accordingly, we have launched a structure-based drug design program featuring a desmethylation strategy wherein methyl groups have been replaced with hydrogens. Herein we report the total synthesis, molecular modeling, and b...

journal_title：ACS medicinal chemistry letters

authors： Glassford I,Lee M,Wagh B,Velvadapu V,Paul T,Sandelin G,DeBrosse C,Klepacki D,Small MC,MacKerell AD Jr,Andrade RB

更新日期：2014-07-16 00:00:00

abstract：:A novel modulator of sodium ion currents was synthesized in 6 steps from a protected dihydroxypyrrolidine nitrone, via 1,3-dipolar cycloaddition reaction with acrylamide. Sodium ion currents in B50 cells were evaluated in comparison to saxitoxin and tetrodotoxin, and revealed an IC(50) of 15.7 muM. The new compound sh...

journal_title：ACS medicinal chemistry letters

authors： Mao H,Fieber LA,Gawley RE

更新日期：2010-03-31 00:00:00

abstract：:Dipeptidyl nitroalkenes are potent reversible inhibitors of cysteine proteases. Inhibitor 11 resulted to be the most potent one with Ki values of 0.49 and 0.44 nM against rhodesain and cruzain, respectively. According to enzymatic dilution and dialysis experiments, as well as computational and NMR studies, dipeptidyl ...

journal_title：ACS medicinal chemistry letters

authors： Latorre A,Schirmeister T,Kesselring J,Jung S,Johé P,Hellmich UA,Heilos A,Engels B,Krauth-Siegel RL,Dirdjaja N,Bou-Iserte L,Rodríguez S,González FV

更新日期：2016-09-21 00:00:00

abstract：:Structural modifications to the coumarin core and benzamide side chain of novobiocin have successfully transformed the natural product from a selective DNA gyrase inhibitor into a potent inhibitor of the Hsp90 C-terminus. However, no SAR studies have been conducted on the noviose appendage, which represents the rate-l...

journal_title：ACS medicinal chemistry letters

authors： Zhao H,Kusuma BR,Blagg BS

更新日期：2010-07-13 00:00:00

abstract：:A novel selective benzoxazepin inhibitor of PI3Kδ has been discovered. Beginning from compound 3, an αPI3K inhibitor, we utilized structure-based drug design and computational analysis of dihedral torsion angles to optimize for PI3Kδ isoform potency and isoform selectivity. Further medicinal chemistry optimization of ...

journal_title：ACS medicinal chemistry letters

authors： Safina BS,Elliott RL,Forrest AK,Heald RA,Murray JM,Nonomiya J,Pang J,Salphati L,Seward EM,Staben ST,Ultsch M,Wei B,Yang W,Sutherlin DP

更新日期：2017-08-25 00:00:00

abstract：:The Bromodomain and Extra Terminal (BET) family of proteins recognize post-translational N-ε-acetylated lysine modifications, regulating transcription as "reader" proteins. Bromodomain inhibitors are interesting targets for the development of potential cancer, inflammation, and heart disease treatments. Several dual k...

journal_title：ACS medicinal chemistry letters

authors： Carlson AS,Cui H,Divakaran A,Johnson JA,Brunner RM,Pomerantz WCK,Topczewski JJ

更新日期：2019-08-02 00:00:00

abstract：:Insulin-regulated aminopeptidase (IRAP) is a transmembrane zinc metallopeptidase with many important biological functions and an emerging pharmacological target. Although previous structural studies have given insight on how IRAP recognizes linear peptides, how it recognizes its physiological cyclic ligands remains el...

journal_title：ACS medicinal chemistry letters

authors： Mpakali A,Saridakis E,Giastas P,Maben Z,Stern LJ,Larhed M,Hallberg M,Stratikos E

更新日期：2020-06-02 00:00:00

abstract：:mPTPB is a virulent phosphatase from Mycobacterium tuberculosis and a promising therapeutic target for tuberculosis. To facilitate mPTPB-based drug discovery, we identified α-sulfophenylacetic amide (SPAA) from cefsulodin, a third generation β-lactam cephalosporin antibiotic, as a novel pTyr pharmacophore for mPTPB. S...

journal_title：ACS medicinal chemistry letters

authors： He R,Yu ZH,Zhang RY,Wu L,Gunawan AM,Zhang ZY

更新日期：2015-11-03 00:00:00

abstract：:Activating mutations in the epidermal growth factor receptor (EGFR) have been identified in a subset of non-small cell lung cancer (NSCLC), which is one of the leading cancer types worldwide. Application of EGFR tyrosine kinase inhibitors leads to acquired resistance by secondary EGFR mutations or by amplification of ...

journal_title：ACS medicinal chemistry letters

authors： Szokol B,Gyulavári P,Kurkó I,Baska F,Szántai-Kis C,Greff Z,Orfi Z,Peták I,Pénzes K,Torka R,Ullrich A,Orfi L,Vántus T,Kéri G

更新日期：2014-01-30 00:00:00

abstract：:We have synthesized several C7-spirocyclic analogues of vorapaxar and evaluated their in vitro activities against PAR-1 receptor. Some of these analogues showed activities and rat plasma levels comparable to vorapaxar. Compound 5c from this series showed excellent PAR-1 activity (K i = 5.1 nM). We also present a model...

journal_title：ACS medicinal chemistry letters

authors： Chelliah MV,Eagen K,Guo Z,Chackalamannil S,Xia Y,Tsai H,Greenlee WJ,Ahn HS,Kurowski S,Boykow G,Hsieh Y,Chintala M

更新日期：2014-03-11 00:00:00

abstract：:Inhibition of the lipid kinase PI3Kδ is a promising principle to treat B and T cell driven inflammatory diseases. Using a scaffold deconstruction-reconstruction strategy, we identified 4-aryl quinazolines that were optimized into potent PI3Kδ isoform selective analogues with good pharmacokinetic properties. With compo...

journal_title：ACS medicinal chemistry letters

authors： Hoegenauer K,Soldermann N,Stauffer F,Furet P,Graveleau N,Smith AB,Hebach C,Hollingworth GJ,Lewis I,Gutmann S,Rummel G,Knapp M,Wolf RM,Blanz J,Feifel R,Burkhart C,Zécri F

更新日期：2016-06-02 00:00:00

abstract：:A novel series of tricyclic tetrahydroquinolines were identified as potent and selective CRTh2 receptor antagonists. The agonism and antagonism switch was achieved through structure-based drug design (SBDD) using a CRTh2 receptor homologue model. The challenge of very low exposures in pharmacokinetic studies was overc...

journal_title：ACS medicinal chemistry letters

authors： Huang X,Brubaker J,Zhou W,Biju PJ,Xiao L,Shao N,Huang Y,Dong L,Liu Z,Bitar R,Buevich A,Jung J,Peterson SL,Butcher JW,Close J,Martinez M,MacCoss RN,Zhang H,Crawford S,McCormick KD,Aslanian R,Nargund R,Correll C

更新日期：2018-06-23 00:00:00

abstract：:Using a multiplexed, reporter gene-based, high-throughput screen, we identified 9-fluoro-7-hydroxy-3-methyl-5-oxo-N-(pyridin-3-ylmethyl)-2,3-dihydro-1H,5H-pyrido[3,2,1-ij]quinoline-6-carboxamide as a TLR2 agonist. Preliminary structure-activity relationship studies on the carboxamide moiety led to the identification o...

journal_title：ACS medicinal chemistry letters

authors： Hu Z,Banothu J,Beesu M,Gustafson CJ,Brush MJH,Trautman KL,Salyer ACD,Pathakumari B,David SA

更新日期：2018-12-20 00:00:00

abstract：:A series of bis(l-amino acid) ester prodrugs of tenofovir (TFV) were designed and synthesized as new anti-HBV agents in this work. Four compounds 11, 12a, 12d, and 13b displayed better anti-HBV activity (IC50: 0.71-4.22 μM) than the parent drug TFV. The most active compound 11 (IC50: 0.71 μM), a bis(l-valine) ester pr...

journal_title：ACS medicinal chemistry letters

authors： Wang A,Wu S,Tao Z,Li X,Lv K,Ma C,Li Y,Li L,Liu M

更新日期：2019-05-16 00:00:00

abstract：:We encountered a dilemma in the course of studying a series of antagonists of the G-protein coupled receptor CC chemokine receptor-2 (CCR2): compounds with polar C3 side chains exhibited good ion channel selectivity but poor oral bioavailability, whereas compounds with lipophilic C3 side chains exhibited good oral bio...

journal_title：ACS medicinal chemistry letters

authors： Yang MG,Xiao Z,Cherney RJ,Tebben AJ,Batt DG,Brown GD,Chen J,Cvijic ME,Dabros M,Duncia JV,Galella M,Gardner DS,Khandelwal P,Ko SS,Malley MF,Mo R,Pang J,Rose AV,Santella JB 3rd,Shi H,Srivastava A,Traeger SC,Wang

更新日期：2019-01-16 00:00:00

abstract：:Poly-ADP-ribose polymerases (PARPs 1-16) have emerged as major regulators of diverse cellular processes. PARPs can be subclassified based on their ability to catalyze poly-ADP-ribosylation (PARylation) or mono-ADP-ribosylation (MARylation). While much is known about the cellular roles of PARPs that catalyze PARylation...

journal_title：ACS medicinal chemistry letters

authors： Morgan RK,Kirby IT,Vermehren-Schmaedick A,Rodriguez K,Cohen MS

更新日期：2018-11-29 00:00:00

abstract：:[This corrects the article DOI: 10.1021/acsmedchemlett.9b00612.]. ...

journal_title：ACS medicinal chemistry letters

authors： Kaiser TM,Dentmon ZW,Dalloul CE,Sharma SK,Liotta DC

更新日期：2020-06-24 00:00:00

abstract：:Visible light-mediated photocatalysis, which relies on the ability of photocatalysts to absorb low-energy visible light and engage in single-electron transfer (SET) or energy transfer (ET) processes with organic substrates, has emerged as one of the fastest growing fields in organic synthesis. This catalytic platform ...

journal_title：ACS medicinal chemistry letters

authors： Li P,Terrett JA,Zbieg JR

更新日期：2020-09-21 00:00:00