Abstract:
:We proposed a novel QSAR (quantitative structure-activity relationship) procedure called LERE (linear expression by representative energy terms)-QSAR involving molecular calculations such as ab initio fragment molecular orbital and generalized Born/surface area ones. We applied LERE-QSAR to two datasets for the free-energy changes during complex formation between carbonic anhydrase and a series of substituted benzenesulfonamides. The first compound set (Set I) and the second one (Set II) include relatively small substituents and alkyl chains of different lengths in the benzene ring, respectively. Variation of the inhibitory activity in Set I is expressed as the combination of Hammett σ and the hydrophobic substituent constant π in classical QSAR, and variation in Set II only by π. LERE-QSAR analyses clearly revealed that effects of σ and π on the activity variations in Sets I and II are consistently explainable with the energy terms in the LERE formulation, and provide more detailed and direct information as to the binding mechanism. The proposed procedure was demonstrated to provide a quantitative basis for understanding ligand-protein interactions at the electronic and atomic levels.
journal_name
Bioorg Med Chem Lettjournal_title
Bioorganic & medicinal chemistry lettersauthors
Munei Y,Shimamoto K,Harada M,Yoshida T,Chuman Hdoi
10.1016/j.bmcl.2010.11.050subject
Has Abstractpub_date
2011-01-01 00:00:00pages
141-4issue
1eissn
0960-894Xissn
1464-3405pii
S0960-894X(10)01662-8journal_volume
21pub_type
杂志文章abstract::A series of COX-2 selective inhibitor nimesulide derivatives were synthesized. Their anti-cell proliferation activities were evaluated with a long-term estrogen deprived MCF-7aro (LTEDaro) breast cancer cell line, which is the biological model of aromatase inhibitor resistance for hormone-dependent breast cancer. Comp...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2009.09.109
更新日期:2009-12-01 00:00:00
abstract::Novel dihydropyrazole sulfonamide derivatives (30-56) were designed, synthesized, and evaluated for their biological activities as COX-1 and COX-2 inhibitors. In vitro biological evaluation against three human tumor cell lines revealed that most target compounds showed antiproliferative activities. Among the compounds...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2015.03.022
更新日期:2015-05-01 00:00:00
abstract::The synthesis and evaluation of tetrasubstituted aminopyridines, bearing novel azaindazole hinge binders, as potent AKT inhibitors are described. Compound 14c was identified as a potent AKT inhibitor that demonstrated reduced CYP450 inhibition and an improved developability profile compared to those of previously desc...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2009.11.061
更新日期:2010-01-15 00:00:00
abstract::Inhibition of histone deacetylases class I/II enzymes is a new, promising approach for cancer therapy. In the present study, we disclose a new structural class of HDAC inhibitors with the trithiocarbonate motif. A clear structure-activity-relationship was obtained for the cap-linker motif and the putative Zn(2+) compl...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2007.06.063
更新日期:2007-09-01 00:00:00
abstract::Mismatch binding protein MutS binding to bulge structure in DNA duplexes was controlled by UV irradiation. 4-O-(2-Nitrobenzyl)thymidine or 4-O-[2-(2-nitrophenyl)propyl]thymidine was incorporated into DNA duplexes a bulged position. The MutS did not bind to the caged DNA duplexes but bound after removing the 2-nitroben...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2016.07.075
更新日期:2016-10-01 00:00:00
abstract::A novel cosalane analog having an extended polyanionic pharmacophore was synthesized in order to target specific cationic residues on the surface of CD4. The design rationale is based on a hypothetical binding model of cosalane to the surface of the protein. The new analog displayed an EC50 of 0.55 microM as an inhibi...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(98)00121-8
更新日期:1998-04-07 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::A series of [4,6-(substituted aryl)-2-thioxo-1,2,3,4-tetrahydro-pyrimidin-5-yl]-acetic acid (4a-r) has been synthesized by the base catalyzed condensation of beta-aroylpropionic acid, thiourea with aldehyde in ethanol. Structures of the new compound were established on the basis of (1)H NMR and IR spectral data. Anti-...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2004.01.039
更新日期:2004-04-05 00:00:00
abstract::Millettia pachycarpa Benth, a widely used anthelminthic drug in folk, is rich in flavonoids with various bioactivities. This study aimed to identify active flavonoids with anti-Alzheimer's disease (AD) effect from its seeds by a bioassay-guided isolation. A novel rotenoid with unusual oxidative ring-opening skeleton (...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2019.03.024
更新日期:2019-05-15 00:00:00
abstract::A novel acromelic acid analogue containing a phenyl group possessing two different types of azido functional groups, of which one is the aromatic N3 acting as a photoaffinity group to bind to a target protein by photoirradiation and the other is alkyl N3 group which survives photolysis acting as a detecting group thro...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2006.01.083
更新日期:2006-05-01 00:00:00
abstract::To understand the species selectivity in a series of alpha-methyl-alpha-phenoxy carboxylic acid PPARalpha/gamma dual agonists (1-11), structure-based molecular modeling was carried out in the ligand binding pockets of both human and mouse PPARalpha. This study suggested that interaction of both 4-phenoxy and phenyloxa...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2004.09.031
更新日期:2004-12-20 00:00:00
abstract::The designed cytosine-carbohydrate hybrid molecule selectively recognized and stabilized the bulged duplex DNA possessing the complementary bulged DNA base, guanine, while the nucleotide base itself did not exhibit any such ability. It was also found that the assistance of the carbohydrate to stabilize the interaction...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2005.06.073
更新日期:2005-10-01 00:00:00
abstract::A new 'naked-eye' quinoline-based 'reactive' ratiometric fluorescent probe was prepared. The reactive stoichiometry of the probe with Hg²⁺ ion was 2:1. The probe exhibited high selectivity towards Hg²⁺ ion to other metal ions with a 410-fold increase in absorbance intensity ratio (A₄₀₂/A₃₄₀) in aqueous solution over a...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2014.10.052
更新日期:2014-12-01 00:00:00
abstract::The X-ray crystal structure for the adduct of human carbonic anhydrase (hCA) II with a topically acting antiglaucoma sulfonamide (the 2-N,N-diethylaminoethylamide of 5-(4-carboxybenzenesulfonamido-1,3,4-thiadiazole-2-sulfonamide), has been resolved at a resolution of 1.6A. This compound is a very potent inhibitor of t...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2004.01.096
更新日期:2004-05-03 00:00:00
abstract::A series of 3-chloro-4-substituted-1-(8-hydroxy-quinolin-5-yl)-azetidin-2-ones were synthesized and evaluated for their in vitro anti-filarial activity. To pre-assess the anti-filarial behavior of synthesized compounds (V(a-f)) on a structural basis, automated docking studies were carried out with Molecular Design Sui...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2010.04.106
更新日期:2010-06-15 00:00:00
abstract::The discovery and optimization of novel pyrrolo[3,4-b]pyridin-7(6H)-one MCH-R1 antagonists are described. A systematic SAR study probing the effects of aryl-, benzyl- and arylthio-substituents at the 2-position of the pyrrolo[3,4-b]pyridin-7(6H)-ones led to identification of the 2-[(4-fluorophenyl)thio] derivative 7b ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2013.01.053
更新日期:2013-03-15 00:00:00
abstract::Based on the structures of aminopyridine thrombin inhibitors (1), a series of aminoalkyl- and guanidinoalkyl-substituted diarylsulfonamides were prepared. The most potent derivative, N-[3-(4-guanidinobutoxy)-5-methyl-phenyl]-benzenesulfonamide (6c) had Ki = 0.18 microM for thrombin and did not inhibit trypsin, plasmin...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(98)00269-8
更新日期:1998-07-07 00:00:00
abstract::A series of benzoxazole/benzothiazole-2,3-dihydrobenzo[b][1,4]dioxine derivatives (5a-5d and 8a-8j) was synthesized. Compounds were evaluated for binding affinities at the 5-HT1A and 5-HT2A receptors. Antidepressant activities of the compounds were screened using the forced swimming test (FST) and the tail suspension ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2014.02.031
更新日期:2014-04-01 00:00:00
abstract::We found that untenone A and mannzamenone A inhibit mammalian DNA polymerases alpha and beta, and human terminal deoxynucleotidyl transferase (TdT). The syntheses of both compounds and the structure-activity relationships of untenone A derivatives are described. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2004.01.092
更新日期:2004-04-19 00:00:00
abstract::1,5-Diazaanthraquinone derivatives were synthesized employing single and double hetero Diels-Alder strategies. Their in vitro antitumour activity was assayed using three cell lines. Some of these compounds, specially those bearing methyl or ethyl groups at the C-3,7 positions or chloro at C-4 and methyl at C-7, showed...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2004.05.055
更新日期:2004-08-02 00:00:00
abstract::A photoresponsive RNA aptamer to hemin was selected in vitro from a random sequence library of RNAs with azobenzene residues. The aptamer bound to hemin under visible light irradiation and was released by ultraviolet light. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2010.02.109
更新日期:2010-05-01 00:00:00
abstract::Spiro-carboxamides were identified as inhibitors of 11beta-hydroxysteroid-dehydrogenase type 1 by high-throughput screening. Structure-based drug design was used to optimise the initial hit yielding a sub-nanomolar IC(50) inhibitor (0.5nM) on human 11beta-HSD1 with a high binding efficiency index (BEI of 32.7) which w...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2009.02.123
更新日期:2009-07-01 00:00:00
abstract::Androgen receptor activity drives incurable castrate-resistant prostate cancer. All approved antiandrogens inhibit androgen receptor-driven transcription, and in addition the second-generation antiandrogen MDV3100 inhibits ligand-activated androgen receptor nuclear translocation, via an unknown mechanism. Here, we rep...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2011.12.141
更新日期:2012-03-01 00:00:00
abstract::A rapid route to a series of naphthoquinone-fused indole derivatives via irradiation in a modified commercial domestic microwave is reported. The desired products were produced in high yields and short reaction times. The naphthoquinone-fused indole derivatives were evaluated for their pro-inflammatory cytokines respo...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2009.07.154
更新日期:2009-10-01 00:00:00
abstract::We previously reported on the monobody E1, which specifically targets the tumor marker hEphA2. In this study, we labeled NOTA-conjugated E1 with 64Cu (64Cu-NOTA-E1) and evaluated biologic characteristics. The uptake of 64Cu-NOTA-E1 in PC3 cells (a human prostate cancer cell line) with high expression of hEphA2 increas...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2020.127262
更新日期:2020-07-15 00:00:00
abstract::The discovery, SAR, and X-ray crystal structure of novel biarylaminoacyl-(S)-2-cyano-pyrrolidines and biarylaminoacylthiazolidines as potent inhibitors of dipeptidyl peptidase IV (DPP IV) are reported. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2005.09.037
更新日期:2006-01-01 00:00:00
abstract::A MeOH extract of the dry root of Lithospermum erythrorhizon showed strong increasing effect on serine palmitoyltransferase (SPT) in normal human keratinocyte cells (HaCaT cells). Bioassay-guided separation on this extract using repeated chromatography resulted in the isolation of lithospermic acid (1) and two derivat...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2009.01.052
更新日期:2009-03-15 00:00:00
abstract::We have developed a novel series of pyrrolidine derived BACE-1 inhibitors. The potency of the weak initial lead structure was enhanced using library-based SAR methods. The series was then further advanced by rational design while maintaining a minimal ligand binding efficiency threshold. Ultimately, the co-crystal str...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2011.11.024
更新日期:2012-01-01 00:00:00
abstract::The (S,S,S,R,S,R)-configurated cyclohexadepsipeptides (CHDPs) represent novel enniatin derivatives with strong in vivo activity against the parasitic nematode Haemonchus contortus Rudolphi in sheep. 2D NMR spectroscopic analysis revealed for the major conformation the asymmetric conformer, containing a cis-amide bond ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(03)00688-7
更新日期:2003-10-06 00:00:00
abstract::Novel pyrano[4,3-b]pyran-5(4H)-one based small molecules were designed as potential inhibitors of sirtuins (i.e., yeast sir2, a homolog of human SIRT1). Elegant synthesis of these compounds was performed via a multi-step sequence consisting of MCR, Sandmeyer type iodination, Sonogashira type coupling followed by iodoc...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2013.05.014
更新日期:2013-07-15 00:00:00