Abstract:
:Bacterial enoyl-acyl carrier protein (ACP) reductases (FabI and FabK) catalyze the final step in each cycle of bacterial fatty acid biosynthesis and are attractive targets for the development of new antibacterial agents. Here, we report the development of novel FabK inhibitors with antibacterial activity against Streptococcus pneumoniae. Based on structure-activity relationship (SAR) studies of our screening hits, we have developed novel phenylimidazole derivatives as potent FabK inhibitors.
journal_name
Bioorg Med Chemjournal_title
Bioorganic & medicinal chemistryauthors
Ozawa T,Kitagawa H,Yamamoto Y,Takahata S,Iida M,Osaki Y,Yamada Kdoi
10.1016/j.bmc.2007.08.050subject
Has Abstractpub_date
2007-12-01 00:00:00pages
7325-36issue
23eissn
0968-0896issn
1464-3391pii
S0968-0896(07)00720-1journal_volume
15pub_type
杂志文章abstract::We herein report the anti-inflammatory activity of some newly synthesized heterocyclic pyridone and pyridine derivatives fused with steroidal structure. Initially the acute toxicity of the compounds was assayed via the determination of their LD(50). All compounds, except 3b, 22, and 23, were interestingly less toxic t...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2006.02.045
更新日期:2006-07-01 00:00:00
abstract::Phenserine is a potentially attractive drug for Alzheimer's disease. In order to further expand SAR study for inhibitions of acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE), the methyl group at the 3a-position of phenserine was replaced with an alkyl or alkenyl group, and its phenylcarbamoyl moiety was s...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2012.06.048
更新日期:2012-08-15 00:00:00
abstract::Several analogues of cirazoline (2), a selective alpha1-adrenoreceptor agonist, were prepared and their pharmacological profiles studied. Although at the alpha1-adrenoreceptor all the compounds displayed a significant agonist activity, at the alpha2-adrenoreceptor they showed either agonist or antagonist activity depe...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(00)00030-4
更新日期:2000-05-01 00:00:00
abstract::Prolactin receptor is involved in normal lactation and reproduction; however, excessive prolactin levels can cause various reproductive disorders such as prolactinomas. Small-molecule antagonists against the human prolactin receptor (hPRLr) thus have potential clinical applications and may serve as useful molecular pr...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2008.01.015
更新日期:2009-02-01 00:00:00
abstract::Topological evidences for modelling lipophilicity of a large series of diversed compounds have been provided on the basis of distance-based topological indices. A pool of topological indices along with indicator parameters related to the type of the compounds present in the set of 140 compounds were used for this purp...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(02)00299-7
更新日期:2002-12-01 00:00:00
abstract::A series of specific alpha-ketoheterocycles (benzoxazole, thiazole, imidazole, tetrazole, and thiazole-4-carboxylate) has been synthesized in order to assess their potential as beta-lactamase inhibitors. The syntheses were achieved either by construction of the heterocycle (benzoxazole) from an appropriate alpha-hydro...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(01)00107-9
更新日期:2001-08-01 00:00:00
abstract::Inhibition of group IIA secreted phospholipase A2 (GIIA sPLA2) has been an important objective for medicinal chemists. We have previously shown that inhibitors incorporating the 2-oxoamide functionality may inhibit human and mouse GIIA sPLA2s. Herein, the development of new potent inhibitors by molecular docking calcu...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2016.02.040
更新日期:2016-04-15 00:00:00
abstract::3D-Quantitative structure-activity relationships of 2,4,5- and 2,3,4,5-substituted imidazoles as a novel class of potent and nontoxic modulators of Pgp mediated MDR were investigated using CoMFA and COMSIA approaches. The best CoMFA model obtained from 46 imidazole analogues is a two-component model with the following...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(01)00040-2
更新日期:2001-06-01 00:00:00
abstract::To detect γ-Glutamyl Transpeptidase (GGT) activity in vitro and in vivo, a bioluminescence probe with high sensitivity and specificity was well designed and synthesized. This probe can be recognized by GGT and release strong bioluminescence with its further reaction with luciferase. The performance of this probe was d...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2017.11.025
更新日期:2018-01-01 00:00:00
abstract::A new series of thirteen N-(carbobenzyloxy)-l-phenylalanine and N-(carbobenzyloxy)-l-aspartic acid-β-benzyl ester compounds were synthesized and evaluated for antiproliferative activity against four different human cancer cell lines: cervical cancer (HeLa), lung cancer (A549), gastric cancer (MGC-803) and breast cance...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2017.03.065
更新日期:2017-06-15 00:00:00
abstract::Epolactaene, a neuritogenic compound in human neuroblastoma SH-SY5Y, induces apoptosis in a human leukemia B-cell line, BALL-1. The apoptosis-inducing activities of 34 epolactaene derivatives, including those of the newly synthesized alpha-alkyl-alpha,beta-epoxy-gamma-lactam derivative and cyclopropane derivatives, we...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2005.10.057
更新日期:2006-04-01 00:00:00
abstract::The amyloid-like fibril is considered to be a macromolecular self-assemblage with a highly-ordered quaternary structure, in which numerous beta-stranded polypeptide chains align regularly. Therefore, this kind of fibril has the potential to be engineered into proteinaceous materials, although conformational alteration...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2003.11.022
更新日期:2004-02-15 00:00:00
abstract::Using haloperidol as a scaffold, new agents were designed to investigate the structural contributions of various groups to binding at CNS receptors associated with atypical antipsychotic pharmacology. It is clear that each pharmacophoric group, the butyrophenone, the piperidine and the 4-chlorophenyl moieties contribu...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2011.12.019
更新日期:2012-02-01 00:00:00
abstract::Novel N-Aroyloxylthioxo-naphthalimides as highly efficient 'time-resolved' DNA photocleavers of aroyloxyl radicals type were designed and synthesized. The substituents at the aroyloxyl moiety have an important and unusual influence on the DNA photocleavage, and DNA photodamages of the compounds were unusually not depe...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2004.02.013
更新日期:2004-05-01 00:00:00
abstract::A novel series of CD1d ligand α-galactosylceramides (α-GalCers) were synthesized by incorporation of the heavy atoms Br and Se in the acyl chain backbone of α-galactosyl-N-cerotoylphytosphingosine. The synthetic analogues are potent CD1d ligands and stimulate mouse invariant natural killer T (iNKT) cells to selectivel...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2016.06.007
更新日期:2016-08-15 00:00:00
abstract::A novel one-pot synthesis of imidazo[1,2-c]pyrimido[5,4-e]pyrimidinones (2), tetraazaacenaphthene-3,6-diones (4), tetarazaphenalene-1,7-dione (4d) is delineated from the reaction of cyclic ketene aminal (1) and alkyl or aryl isothiocyanate through tandem addition-cyclization reactions. However, reaction of ketene amin...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(01)00423-0
更新日期:2002-05-01 00:00:00
abstract::Quaternary carbolinium salts have been reported to show improved antimalarial activity and reduced cytotoxicity as compared to electronically neutral beta-carbolines. In this study, mono- and di-methylated quaternary carbolinium cations of manzamine A were synthesized and evaluated for their in vitro antimalarial and ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2008.05.079
更新日期:2008-07-15 00:00:00
abstract::We have previously found that T22 ([Tyr(5,12), Lys7]-polyphemusin II) has strong anti-human immunodeficiency virus (HIV) activity, and that T22 inhibits T cell-line-tropic HIV-1 infection mediated by CXCR4/fusin. T22 is an 18-residue peptide amide, which takes an antiparallel beta-sheet structure that is maintained by...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(98)00061-3
更新日期:1998-07-01 00:00:00
abstract::Compounds which inhibit the HIV-1 replication cycle have been found amongst fragment peptides derived from an HIV-1 matrix (MA) protein. Overlapping peptide libraries covering the whole sequence of MA were designed and constructed with the addition of an octa-arginyl group to increase their cell membrane permeability....
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2011.12.055
更新日期:2012-02-15 00:00:00
abstract::Human urotensin II (hU-II; H-Glu-Thr-Pro-Asp-cyclo[Cys-Phe-Trp-Lys-Tyr-Cys]-Val-OH) is a disulfide bridged undecapeptide recently identified as the ligand of an orphan G protein-coupled receptor. hU-II has been described as the most potent vasoconstrictor compound identified to date. With the aim of replacing the disu...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(02)00372-3
更新日期:2002-12-01 00:00:00
abstract::Hormone sensitive lipase (HSL) has emerged as an attractive target for the treatment of dyslipidemia. We previously reported compound 1 as a potent and orally active HSL inhibitor. Although an attractive profile was demonstrated, subsequent studies revealed that compound 1 has a bioactivation liability. The oxygen-car...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2017.02.045
更新日期:2017-04-01 00:00:00
abstract::Activation of peroxisome proliferator-activated receptor (PPAR) subtypes offers a promising strategy for the treatment of diabetes mellitus and metabolic diseases. Selective and dual PPAR agonists have been developed and the systematic characterization of their structure-activity relationships (SAR) is of major signif...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2012.04.005
更新日期:2012-06-01 00:00:00
abstract::6-N-(Benzothiazol-2-yl)deoxyadenosine (A(BT)) was synthesized and incorporated into DNAs. Although, the multipoint benzothiazole (BT) modification of oligodeoxynucleotides reduced the stability of duplexes with their complementary strands, it induced the strong exciton coupling between BT moieties. The circular dichro...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2009.12.009
更新日期:2010-01-15 00:00:00
abstract::(+/-)-1-(anti-3-Hydroxy-cyclopentyl)-3-(4-methoxy-phenyl)-7-phenylamino-3,4-dihydro-1H-pyrimido[4,5-d]pyrimidin-2-one (RO4383596) is a potent and selective inhibitor of the pro-angiogenic receptor tyrosine kinases KDR, FGFR, and PDGFR. This agent has an excellent pharmacokinetic profile and is highly efficacious in ro...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2005.05.012
更新日期:2005-08-15 00:00:00
abstract::Although cancer cells often harbor supernumerary centrosomes, they form pseudo-bipolar spindles via centrosome clustering, instead of lethal multipolar spindles, and thus avoid cell death. Kinesin-14 HSET/KIFC1 is a crucial protein involved in centrosome clustering. Accordingly, a compound that targets HSET could pote...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2019.115154
更新日期:2020-01-01 00:00:00
abstract::Three haloderivatives of noscapine 2-4 were synthesized chemoselectively and their in vitro cytotoxicity was assessed by MTT assay on U-87 human glioblastoma cell lines. At 50 microM concentration after 72 h, 9-chloronoscapine 2, 9-bromonoscapine 3 (EM011), and 9-iodonoscapine 4 killed 87.8%, 51.2%, and 56.8% cells, r...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2006.05.069
更新日期:2006-10-01 00:00:00
abstract::The kainoids are a class of excitatory and excitotoxic pyrrolidine dicarboxylates that act at ionotropic glutamate receptors. The kainoids bind kainate receptors with high affinity and, while binding affinity is lower at AMPA (alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) receptors, they are active in func...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(02)00448-0
更新日期:2003-02-20 00:00:00
abstract::The combination of berberine and baicalein may have a better therapeutic effect against disease. To explore the combined effect of baicalein and berberine in the treatment of obesity, we designed and synthesized a hybrid compound, and its biological activities were evaluated in 3T3-L1 adipocytes. The structures of the...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2017.08.013
更新日期:2017-10-15 00:00:00
abstract::Protozoan parasites are unable to synthesize purines de novo and must rely on purine salvage pathways for their requirements. Nucleoside hydrolases, which are not found in mammals, function as key enzymes in purine salvage in protozoa. Inhibition of these enzymes may disrupt purine supply and specific inhibitors are p...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(99)00210-2
更新日期:1999-11-01 00:00:00
abstract::A new heterocyclic family of (2-(dimethylamino)ethyl)-2-substituted phenylnaphtho[2,1-d]thiazole-5-carboxamides modified from naphthalimides was designed, synthesized, and quantitatively evaluated as antitumor agents and photonucleases. All these compounds were found to be more cytotoxic against P388 than against A549...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2005.02.045
更新日期:2005-05-02 00:00:00