Abstract:
:Imidazo[1,2-a]pyrimidines and imidazo[1,2-b][1,2,4]triazines are ligands for the benzodiazepine binding site of GABA(A) receptors that are functionally selective for the alpha2/alpha3 subtypes over the alpha1 subtype. SAR studies to optimise this functional selectivity, pharmacokinetic and behavioural data are described.
journal_name
Bioorg Med Chem Lettjournal_title
Bioorganic & medicinal chemistry lettersauthors
Jennings AS,Lewis RT,Russell MG,Hallett DJ,Street LJ,Castro JL,Atack JR,Cook SM,Lincoln R,Stanley J,Smith AJ,Reynolds DS,Sohal B,Pike A,Marshall GR,Wafford KA,Sheppard WF,Tye SJdoi
10.1016/j.bmcl.2005.12.044subject
Has Abstractpub_date
2006-03-15 00:00:00pages
1477-80issue
6eissn
0960-894Xissn
1464-3405pii
S0960-894X(05)01601-Xjournal_volume
16pub_type
杂志文章abstract::The 1,3-dipolar cycloaddition of azomethine ylides derived from acenaphthenequinone and alpha-amino acids viz. sarcosine, phenylglycine, 1,3-thiazolane-4-carboxylic acid and proline to a series of 2,6-bis[(E)-arylmethylidene]cyclohexanones afforded novel spiro-heterocycles chemo-, regio- and stereoselectively in quant...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2009.05.018
更新日期:2009-07-01 00:00:00
abstract::Urea-based inhibitors of human glutamate carboxypeptidase II (GCPII) have advanced into clinical trials for imaging metastatic prostate cancer. In parallel efforts, agents with increased lipophilicity have been designed and evaluated for targeting GCPII residing within the neuraxis. Here we report the structural and c...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2014.03.066
更新日期:2014-05-15 00:00:00
abstract::Naturally occurring 8-O-methylated sialic acids, including 8-O-methyl-N-acetylneuraminic acid and 8-O-methyl-N-glycolylneuraminic acid, along with 8-O-methyl-2-keto-3-deoxy-d-glycero-d-galacto-nonulosonic acid (Kdn8Me) and 8-deoxy-Kdn were synthesized from corresponding 5-O-modified six-carbon monosaccharides and pyru...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2011.04.083
更新日期:2011-09-01 00:00:00
abstract::A series of aromatic sulfonamides incorporating indane moieties were prepared starting from commercially available 1- and 2-indanamine, and their activity as inhibitors of two carbonic anhydrase (CA, EC 4.2.1.1) isozymes, hCA I and II was studied. The new sulfonamides incorporating acetamido, 4-chloro-benzoyl, valproy...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2004.09.061
更新日期:2004-12-06 00:00:00
abstract::Based on previous modeling predictions, a series of (3-substituted-5-chloro-2-pyridinyl)guanidines have been designed with good potency and selectivity for urokinase-type plasminogen activator (uPA). Compound 36 has a K(i) of 0.17 microM and greater than 300-fold selectivity with respect to tPA and plasmin. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(01)00702-8
更新日期:2002-01-21 00:00:00
abstract::Eighteen diamidino azaterphenyls and analogues were evaluated as anti-leishmanials; nine of the compounds gave IC50 values less than 1 microM, five exhibited values less than 0.40 microM, and two gave values less than 0.10 microM in a Leishmania donovani axenic amastigote assay. The activity of the diamidines strongly...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2007.10.091
更新日期:2008-01-01 00:00:00
abstract::A total of 24 pirfenidone derivatives were designed, synthesized and evaluated for their inhibitory activity against the human lung fibroblast cell line MRC-5. These compounds showed the remarkable proliferation inhibition against MRC-5 compared to pirfenidone as the positive control. The possible mechanism of this ki...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2013.11.038
更新日期:2014-01-01 00:00:00
abstract::Matrix metalloproteinase-13 (MMP-13) has been implicated as the protease responsible for collagen degradation in cartilage during osteoarthritis (OA). Compounds that inhibit the metalloproteinase at the Zn binding site typically lack specificity among MMP family members. Analogs of the low-micromolar lead MMP-13 inhib...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2011.09.077
更新日期:2011-12-01 00:00:00
abstract::Aryldihydropyridazinones and aryldimethylpyrazolones with 2-benzyl vinylogous amide substituents have been identified as potent PDE3B subtype selective inhibitors. Dihydropyridazinone 8a (PDE3B IC(50)=0.19 nM, 3A IC(50)=1.3 nM) was selected for in vivo evaluation of lipolysis induction, metabolic rate increase, and ca...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2003.08.056
更新日期:2003-11-17 00:00:00
abstract::A novel series of N-arylidene-2-(2,4-dichloro phenyl)-1-propyl-1H-benzo[d] imidazole-5-carbohydrazides having different substitution on the arylidene part were synthesized in good yield. The core nucleus benzimidazole-5-carboxylate (5) was efficiently synthesized by 'one-pot' nitro reductive cyclization reaction betwe...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2015.02.043
更新日期:2015-04-01 00:00:00
abstract::The synthesis and biological evaluation of a series of novel isobenzofuran-based compounds are described. The compounds were evaluated for their immunosuppressive effects of T-cell proliferation and IMPDH type II inhibitor activity in vitro, as well as their structure-activity relationships were assessed. Several comp...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2011.11.078
更新日期:2012-01-01 00:00:00
abstract::A novel series of aminopyrimidine IKK2 inhibitors have been developed which show excellent in vitro inhibition of this enzyme and good selectivity over the IKK1 isoform. The relative potency and selectivity of these compounds has been rationalized using QSAR and structure-based modelling. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2003.10.047
更新日期:2004-01-19 00:00:00
abstract::The synthesis and evaluation of small molecule antagonists of the G protein-coupled receptor NPBWR1 (GPR7) are reported for the first time. [4-(5-Chloropyridin-2-yl)piperazin-1-yl][(1S,2S,4R)-4-{[(1R)-1-(4-methoxyphenyl)ethyl]amino}-2-(thiophen-3-yl)cyclohexyl]methanone (1) emerged as a hit from a high-throughput scre...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2011.11.126
更新日期:2012-01-15 00:00:00
abstract::The identification of a novel series of PKCθ inhibitors and subsequent optimization using docking based on a crystal structure of PKCθ is described. SAR was rapidly generated around an amino pyridine-ketone hit; (6-aminopyridin-2-yl)(2-aminopyridin-3-yl)methanone 2 leading to compound 21 which significantly inhibits p...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2012.05.114
更新日期:2012-07-15 00:00:00
abstract::New carbon-11 and fluorine-18 labeled N-acetyl-1-aryl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline derivatives were designed and synthesized as potential positron emission tomography AMPA (2-amino-3-(3-hydroxy-5-methylisoxazol-4-yl)propionic acid) receptor ligands to image brain diseases. The single crystal structure ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2006.01.042
更新日期:2006-04-15 00:00:00
abstract::The 5,5-bicycles cis-6-oxo-hexahydro-2-oxa-1,4-diazapentalene 3 and cis-6-oxo-hexahydropyrrolo[3,2-c]pyrazole 4 were designed as rotationally restricted templates towards the preparation of inhibitors of CAC1 cysteinyl proteinases. The design strategy was exemplified through the solution and solid phase preparation of...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2005.01.022
更新日期:2005-03-01 00:00:00
abstract::Several benzocyclobutacarbazol derivatives were synthesized and evaluated for their potential cytotoxic properties. A number of these compounds exhibited significant antiproliferative activity with concomitant interaction with the cell cycle and represent a new class of potential anticancer agents. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(00)00532-1
更新日期:2000-12-04 00:00:00
abstract::A novel class of 4-substituted-8-(1-phenyl-cyclohexyl)-2,8-diaza-spiro[4.5]decan-1-ones have been discovered and developed as potent and selective GlyT1 inhibitors. The molecules are devoid of activity at the GlyT2 isoform and display excellent selectivities against the mu opioid receptor as well as the nociceptin/orp...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2006.05.063
更新日期:2006-08-15 00:00:00
abstract::Compound DNSTT-Cu2+, a novel chelate of Cu2+ with DOTA conjugated to a fluorescent dansyl fragment, is developed for imaging cell apoptosis. Apoptotic U-87MG cells could be selectively visualized by the fluorescence of DNSTT-Cu2+ from cytoplasm of cells, confirmed by the fluorescence of apoptosis cells co-labeled with...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2016.09.057
更新日期:2016-11-15 00:00:00
abstract::Two series of novel tricyclic oxazine and oxazepine fused quinazolines have been designed and synthesized. The in vitro antitumor effect of the title compounds was screened on N87, A431, H1975, BT474 and Calu-3 cell lines. Compared to gefitinib and erlotinib, compounds 1a-1h were found to demonstrate more potent antit...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2016.08.007
更新日期:2016-10-01 00:00:00
abstract::Ionic liquid ethyl ammonium nitrate is used as an excellent catalyst and solvent for three-component one-pot reaction of an aldehydes, amines and diethylphosphite to form novel α-aminophosphonates at room temperature. Among the various catalysts, the preparation of ethyl ammonium nitrate is an environmental friendly, ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2011.02.039
更新日期:2011-04-15 00:00:00
abstract::We describe an efficient method for the synthesis of alkyl lysophosphatidic acid (LPA) analogs as well as alkyl LPA mono- and difluoromethylene phosphonate analogs. Each alkyl LPA analog was evaluated for subtype-specific LPA receptor agonist activity using a cell migration assay for LPA(1) activation in cancer cells ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2004.08.019
更新日期:2004-11-01 00:00:00
abstract::The efficient synthesis of an enzyme cleavable biotinylated diazirinyl photoaffinity ligand is described to allow the effective manipulation of the photolabeled biocomponents. The compound contains a glutamic acid gamma-methyl ester, which is a precursor of the substrate for V8 protease, between the diazirinyl photoph...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2004.03.011
更新日期:2004-05-17 00:00:00
abstract::This study was aimed to elucidate the novel structure of HY251 isolated from the roots of Aralia continentalis and to evaluate its detailed inhibition mechanisms on cell cycle progression in HeLa cells. The structure of HY251 was elucidated based on the interpretation of the NMR spectra, as 3-propyl-2-vinyl-1,2,3,3a,3...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2008.11.087
更新日期:2009-02-01 00:00:00
abstract::Several newer isosteric analogues of glycosyl phosphates, namely of glycosyl phosphoramidates, were synthesized in good yields using Staudinger reaction of their corresponding azides with trimethyl phosphite followed by de-O-acetylation. The structure and conformation of the fully protected analogue synthesized, namel...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(01)00469-3
更新日期:2001-09-17 00:00:00
abstract::A series of ferrocenyl chalcones were synthesized and evaluated for in vitro antimalarial activity against a chloroquine-resistant strain of Plasmodium falciparum. The most active compounds were 1-(3-pyridyl)-3-ferrocenyl-2-propen-1-one (6) and 1-ferrocenyl-3-(4-nitrophenyl)-2-propen-1-one (28) with IC(50) of 4.5 and ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(02)00430-4
更新日期:2002-09-02 00:00:00
abstract::The X-ray crystallographic structure for the adduct of an activator with human carbonic anhydrase isozyme I (hCA I) is reported. L-Histidine binds deep within the enzyme active site, participating in a network of hydrogen bonds involving its carboxylate moiety and the zinc-bound water molecule, as well as the imidazol...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2006.07.021
更新日期:2006-10-01 00:00:00
abstract::A remarkable control of the potency of cantharimide is described based on the electronic properties of functional group and it exhibits a relatively less toxic effect to the non-malignant hematological disorder bone marrow cells. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2006.12.039
更新日期:2007-03-01 00:00:00
abstract::A series of alpha,beta-unsaturated-gamma-lactone-free nitrogen-containing heterocyclic analogues of solamin, a natural mono-THF acetogenin, have been synthesized and their cytotoxicity was investigated against 39 tumor cell lines. One of them, 1-methylpyrazol-5-yl derivative, showed selective increase of cytotoxicity ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2008.01.057
更新日期:2008-03-01 00:00:00
abstract::Incorporation of a carboxylic acid into a series of uracil derivatives as hGnRH-R antagonists resulted in a significant reduction of CYP3A4 inhibitory activity. Highly potent hGnRH antagonists with low CYP3A4 inhibitory liability, such as 8a and 8d, were identified. Thus, 8a had a K(i) of 2.2 nM at GnRH-R and an IC(50...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2008.04.036
更新日期:2008-06-01 00:00:00