Abstract:
:Activators of the pyruvate kinase M2 (PKM2) are currently attracting significant interest as potential anticancer therapies. They may achieve a novel antiproliferation response in cancer cells through modulation of the classic 'Warburg effect' characteristic of aberrant metabolism. In this Letter, we describe the optimization of a weakly active screening hit to a structurally novel series of small molecule 3-(trifluoromethyl)-1H-pyrazole-5-carboxamides as potent PKM2 activators.
journal_name
Bioorg Med Chem Lettjournal_title
Bioorganic & medicinal chemistry lettersauthors
Xu Y,Liu XH,Saunders M,Pearce S,Foulks JM,Parnell KM,Clifford A,Nix RN,Bullough J,Hendrickson TF,Wright K,McCullar MV,Kanner SB,Ho KKdoi
10.1016/j.bmcl.2013.12.028subject
Has Abstractpub_date
2014-01-15 00:00:00pages
515-9issue
2eissn
0960-894Xissn
1464-3405pii
S0960-894X(13)01400-5journal_volume
24pub_type
杂志文章abstract::A reliable and efficient synthesis of a Ni(II) salen complex useful in probing nucleic acid structure is described and illustrates a general approach for constructing cis diamines suitable for assembly into N2O2 Schiff base complexes. Two equivalents of an aryllithium reacted with 1,4-dimethylpiperazine-2,3-dione to f...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(99)00020-7
更新日期:1999-02-08 00:00:00
abstract::The effect of 2'-O-(N-methylcarbamoyl)ethyl (MCE) modification on splice-switching oligonucleotides (SSO) was systematically evaluated. The incorporation of five MCE nucleotides at the 5'-termini of SSOs effectively improved the splice switching effect. In addition, the incorporation of 2'-O-(N-methylcarbamoylethyl)-5...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2018.12.005
更新日期:2019-01-15 00:00:00
abstract::A series of 4'-hydroxyphenyl-aryl-carbaldehyde oximes (5b) was prepared and found to have high affinity (4nM) and modest selectivity (39-fold) for estrogen receptor-beta (ERbeta). Substitution of one of the core rings of the scaffold based around these novel ligands further expanded our knowledge in the quest toward a...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2006.11.066
更新日期:2007-02-15 00:00:00
abstract::The synthesis and biological evaluation of a set of residue 3 analogues of vancomycin and its aglycon are described. These investigations follow from the promising biological activity of a protected and synthetically modified vancomycin aglycon analogue in which the asparagine side chain was modified to possess a nitr...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(02)00130-0
更新日期:2002-05-06 00:00:00
abstract::Low brain levels of the inhibitory neurotransmitter gamma-aminobutyric acid (GABA) lead to convulsions. Inhibition of GABA aminotransferase increases the concentration of GABA and can terminate the convulsions. Earlier we reported the synthesis of (1S,3S)-3-amino-4-difluoromethylenecyclopentanecarboxylic acid (2), whi...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2006.12.119
更新日期:2007-03-15 00:00:00
abstract::Novel arylethynyltriazole acyclonucleosides were synthesized and assessed for their anticancer activity on drug-resistant pancreatic cancer MiaPaCa-2 cells. One lead compound was found to have much more potent apoptosis-related antiproliferative effects than gemcitabine, the current first-line treatment for pancreatic...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2010.08.093
更新日期:2010-10-15 00:00:00
abstract::New N-(1,2-diphenylethyl)piperazines 6 are disclosed as dual serotonin and noradrenaline reuptake inhibitors (SNRI) which may have potential in treating stress urinary incontinence (SUI). In this Letter, we present new data for SNRI PF-526014 (4) including performance in a canine in vivo model of SUI, cardiovascular a...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2010.04.052
更新日期:2010-06-15 00:00:00
abstract::Betulinic acid has been modified at C-3, C-20, and C-28 positions and the toxicity of the derivatives has been evaluated against cultured human melanoma (MEL-2) and human epidermoid carcinoma of the mouth (KB) cell lines. This preliminary investigation demonstrates that simple modifications of the parent structure of ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(98)00295-9
更新日期:1998-07-07 00:00:00
abstract::This SAR study has shown that the salicylanilide is the pharmacophore for inhibition of the bacterial two-component system. Hydrophobic substituents improve the potency of inhibitors in this series; however, hydrophobicity is not the sole determinant for inhibition; structural and electronic requirements also exist. C...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(98)00326-6
更新日期:1998-07-21 00:00:00
abstract::The in vitro antimycobacterial activity of cobalt(II) and copper(II) complexes of some fluorinated isonicotinoylhydrazones was evaluated in a TB-infected macrophage model; all metalcomplexes exhibited excellent activity against Mycobacterium tuberculosis Erdman growing within macrophages, at concentrations much lower ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2004.09.052
更新日期:2004-12-06 00:00:00
abstract::We have synthesized a novel vitamin D receptor agonist VS-105 ((1R,3R)-5-((E)-2-((3αS,7αS)-1-((R)-1-((S)-3-hydroxy-2,3-dimethylbutoxy)ethyl)-7α-methyldihydro-1H-inden-4(2H,5H,6H,7H,7αH)-ylidene)ethylidene)-2-methylenecyclohexane-1,3-diol). Preparation of a-ring phenylphosphine oxide 11, followed by Wittig-Horner coupl...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2013.08.076
更新日期:2013-11-01 00:00:00
abstract::Antibiotic resistance has prompted efforts to discover antibiotics with novel mechanisms of action. FtsZ is an essential protein for bacterial cell division, and has been viewed as an attractive target for the development of new antibiotics. Sanguinarine is a benzophenanthridine alkaloid that prevents cytokinesis in b...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2012.09.097
更新日期:2012-12-01 00:00:00
abstract::Crambescin B carboxylic acid, a synthetic analog of crambescin B, was recently found to inhibit the voltage-sensitive sodium channels (VSSC) in a cell-based assay using neuroblastoma Neuro 2A cells. In the present study, whole-cell patch-clamp recordings were conducted with three heterologously expressed VSSC subtypes...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2017.01.054
更新日期:2017-03-01 00:00:00
abstract::The capabilities of 20 strains of fungi to transform acetyl-11-keto-β-boswellic (AKBA) were screened. And biotransformation of AKBA by Cunninghamella blakesleana AS 3.970 afforded five metabolites (1-5), while two metabolites (6, 7) were isolated from biotransformation of Cunninghamella elegans AS 3.1207. The chemical...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2012.12.086
更新日期:2013-03-01 00:00:00
abstract::Atropisomerism is stereochemistry arising from restricted bond rotation that creates a chiral axis. Atropisomers are subject to time-dependent inversion of chirality via bond rotation, a property which in drug molecules introduces complexity and challenges for drug discovery and development processes. Greater recognit...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章,评审
doi:10.1016/j.bmcl.2017.11.050
更新日期:2018-01-15 00:00:00
abstract::Recent studies have found that phthalonitrile derivatives are remarkably potent inhibitors of human monoamine oxidase (MAO) A and B. In an attempt to further determine the structure-activity relationships (SARs) for MAO inhibition by this class of compounds and to discover novel potent MAO inhibitors, the present stud...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2015.01.061
更新日期:2015-03-15 00:00:00
abstract::Zoanthamines are a family of marine alkaloids that have complex heptacyclic structures and are reported to be interleukin-6 modulators. While the structure of zoanthamines, especially the ABC-ring portion, is similar to that of steroids, the CDEFG-ring portion, composed of aminoacetal and lactone core, is a unique str...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2004.02.064
更新日期:2004-05-17 00:00:00
abstract::The objective of this Letter is to report the first (to our knowledge) in vivo proof of concept for a sulfenamide prodrug to orally deliver a poorly soluble drug containing a weakly-acidic NH-acid from a conventional solid dosage formulation. This proof of concept was established using BMS-708163 (1), a gamma secretas...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2019.126856
更新日期:2020-02-01 00:00:00
abstract::A series of thirty-seven 1,3,5-triazine analogues have been synthesized, characterized and evaluated for their antiproliferative activity against a panel of four different human cancer cell lines such as HeLa, HepG2, A549 and MCF-7. Most of the 1,3,5-triazine analogues exhibited promising antiproliferative activity ag...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2017.06.060
更新日期:2017-08-15 00:00:00
abstract::The effect of 2,3 modifications on the antibacterial activity of ketolides was evaluated by introducing substituents in position 2 and converting the C-1, C-2, C-3 beta-keto-ester into stable 2,3 enol-ether or 2,3 anhydro derivatives. Introduction of a fluorine in C-2 is beneficial with regard to the overall antibacte...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(00)00392-9
更新日期:2000-09-04 00:00:00
abstract::A nucleopeptide was prepared in a convergent manner via segmental coupling of the protected biopolymers in solution. The resulting nucleopeptide (4b, 72%) containing the binding site of lambda repressor and a peptide containing the consensus sequence of the DNA binding helix of the helix turn-helix-proteins was obtain...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(99)00051-7
更新日期:1999-02-22 00:00:00
abstract::Aryl dihydrouracil derivatives were identified from high throughput screening as potent inhibitors of HCV NS5B polymerase. The aryl dihydrouracil derivatives were shown to be non-competitive with respect to template RNA and elongation nucleotide substrates. They demonstrated genotype 1 specific activity towards HCV NS...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2012.04.017
更新日期:2012-06-01 00:00:00
abstract::Two series of 5-phenyl furocoumarin derivatives were designed and prepared based on our previous research. All new compounds were characterized by (1)H NMR, (13)C NMR and mass spectra. Furthermore, they were screened for their vasodilatory activity on the mesenteric artery of Sprague-Dawley rats, and they all presente...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2015.11.056
更新日期:2016-01-15 00:00:00
abstract::In the present communication we prepared a series of six 4-hydroxycoumarin derivatives, isosters of quercetin, recognized as an antioxidant natural compound, with the aim of evaluating the antitrypanosomal activity against Trypanosoma cruzi, the parasite responsible for Chagas disease, and the antioxidant properties. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2012.07.013
更新日期:2012-09-01 00:00:00
abstract::Epothilone A reacted with hydrohalic acids to C12-C13 halohydrin regioisomers (ratios: 2:1-4:1), whereas epothilone B gave under the same conditions the isomerically pure C12 halo C13 hydroxy derivative. With non-nucleophilic Brønstedt acids and with Lewis acids a highly solvent dependent product distribution and some...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/S0960-894X(98)00546-0
更新日期:1998-11-03 00:00:00
abstract::Iminium quaternary protoberberine alkaloids (QPA) have been found to be novel P2X(7) antagonists. To assess their structure-activity relationships, these compounds were modified at their R(1) and R(2) groups and assayed for their ability to inhibit the 2'(3')-O-(4-benzoylbenzoyl)-ATP (BzATP)-induced uptake of fluoresc...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2008.11.088
更新日期:2009-02-01 00:00:00
abstract::We describe the identification, SAR, and in vivo pharmacology of a new series of Src-family selective Lck inhibitors. These thienopyridines were designed based on a desire to access the unique residues in the extended hinge region of Lck. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2006.12.035
更新日期:2007-03-01 00:00:00
abstract::Based on the structural features of Indoprofen and PIB, a series of isoindol-1,3-diones 1a-k and isoindol-1-ones 2a-l were designed and synthesized. These 23 compounds were evaluated by competitive binding assay against aggregated Abeta42 fibrils using [(125)I]TZDM. All the isoindolone derivatives showed very good bin...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2008.01.066
更新日期:2008-03-01 00:00:00
abstract::Inhibition of sodium-dependent glucose transporter 2 (SGLT2), the transporter that is responsible for renal re-uptake of glucose, leads to glucosuria in animals. SGLT-mediated glucosuria provides a mechanism to shed excess plasma glucose to ameliorate diabetes-related hyperglycemia and associated complications. The cu...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2008.07.109
更新日期:2008-09-01 00:00:00
abstract::The SmI(2)-promoted three-component coupling reaction of thiophene-2-carboxylate, indole-2-carbaldehyde and acetophenone provides an expedient route to a series of tetracyclic carbazolothiophene compounds bearing the indole and thiophene rings. Among these samples, 9-benzyl-4-methyl-4-(4-hydroxyphenyl)-10-oxo-4,10-dih...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2003.12.067
更新日期:2004-03-08 00:00:00