Abstract:
:Considerable interest has been attracted in xanthone and its derivatives because of their important biological activities. In this paper, a series of novel 3-arylacyloxyxanthone derivatives 2a-p were synthesized and evaluated for their biological activities toward α-glucosidase. In comparison to the parent 1,3-dihydroxylxanthone 1a, 3-arylacyloxy derivatives 2a-p with additional aromatic ester groups at 3-position show up to 13.7-fold higher inhibitory activities. In particular, the IC50 values of compounds 2i, 2m, 2p reach 13.3, 10.6, 11.6 μM, respectively. These results suggest that addition of aromatic moieties by esterification at the 3-OH of the parent 1,3-dihydroxylxanthone is an efficient way to increase the inhibition against α-glucosidase. Different from previous multi-hydroxylxanthones, these 3-arylacyloxyxanthone derivatives show efficient inhibitory activities may due to the π-stacking or hydrophobic effects of the additional aromatic moieties rather than the H-bonding donor interaction of 3-OH. Structure-activity relationship analysis shows that the substituents on the additional aromatic ring also influence the inhibition. All the oxygen or nitrogen-containing groups, like hydroxyl, methoxy, methaminyl, and alkylsilyloxy, can enhance the inhibitory activities. In addition, the kinetics of enzyme inhibition measured by using Lineweaver-Burk plots shows that selected compounds 2i, 2m and 2p are non-competitive inhibitors. Docking simulations further support our structure-activity relationship analysis that additional aromatic moieties enhance inhibitory activities via hydrophobic effects. The new developed 3-arylacyloxyxanthone derivatives probably bind with α-glucosidase in an allosteric site different from traditional multi-hydroxylxanthones.
journal_name
Bioorg Med Chemjournal_title
Bioorganic & medicinal chemistryauthors
Li GL,Cai CY,He JY,Rao L,Ma L,Liu Y,Wang Bdoi
10.1016/j.bmc.2016.01.022subject
Has Abstractpub_date
2016-04-01 00:00:00pages
1431-8issue
7eissn
0968-0896issn
1464-3391pii
S0968-0896(16)30022-0journal_volume
24pub_type
杂志文章abstract::In this study, both pure DMPC and DMPC/cholesterol mixed membrane monolayer were built to compare the physical-chemical properties and dynamics properties through molecular dynamics simulation and normal-mode analysis. The results show that the addition of cholesterol decreases the area of per molecule of membrane, in...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2005.11.009
更新日期:2006-04-01 00:00:00
abstract::Activation of the nuclear farnesoid X receptor (FXR) which acts as cellular bile acid sensor has been validated as therapeutic strategy to counter liver disorders such as non-alcoholic steatohepatitis by the clinical efficacy of obeticholic acid. FXR antagonism, in contrast, is less well studied and potent small molec...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2018.07.017
更新日期:2018-08-07 00:00:00
abstract::A series of 1-substituted-3(5)-(6-methylpyridin-2-yl)-4-(quinolin-6-yl)pyrazoles 14a-e, 15a-e, 17a-c, and 18a-d have been synthesized and evaluated for their ALK5 inhibitory activity in an enzyme assay and in a cell-based luciferase reporter assay. The 6-quinolinyl pyrazole analogue 14b inhibited ALK5 phosphorylation ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2011.03.008
更新日期:2011-04-15 00:00:00
abstract::Janus kinases inhibitor is considered to have therapeutic potential for the treatment of oncology and immune-inflammatory diseases. Two series of 4-(2-benzofuranyl)pyrimidin-2-amine and 4-(4,5,6,7-tetrahydrofuro[3,2-c]pyridin-2-yl)pyrimidin-2-amine derivatives have been designed and synthesized. Primary SAR studies re...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2016.10.011
更新日期:2017-01-01 00:00:00
abstract::Antisense oligonucleotides (AS-ODNs) specifically hybridize with target mRNAs, resulting in interference with the splicing mechanism or the regulation of protein translation. In our previous reports, we demonstrated that β-glucan schizophyllan (SPG) can form a complex with AS-ODNs attached with oligo deoxyadenosine dA...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2020.115668
更新日期:2020-09-15 00:00:00
abstract::Octyl and dodecyl glycosides possessing 2-deoxy-arabino-hexopyranoside moieties belonging to the D- and L-series in their alpha- and beta-forms were synthesized by reaction of an acetyl protected glycal with octanol or dodecanol, catalyzed by triphenylphosphine hydrobromide, followed by deprotection. Their surface pro...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2008.01.020
更新日期:2008-04-01 00:00:00
abstract::A system for identification of bioisosteric scaffolds is presented. The system uses a database of over 7000 scaffolds extracted from bioactive molecules. Scaffolds in the database are characterized by their size, shape, pharmacophore features and several ADME descriptors. Also properties characterizing electron-donati...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2012.02.058
更新日期:2012-09-15 00:00:00
abstract::A library of 25-membered chalcones was prepared by parallel synthesis. Substituted acetophenones and benzaldehydes were condensed using the Claisen-Schmidt base-catalyzed aldol condensation. Several chalcones showed in vitro antiparasitic activity against Giardia lamblia. The highest activity observed for the IC(50) v...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2009.02.052
更新日期:2009-09-15 00:00:00
abstract::The discovery of the first class of potent glucose-6-phosphatase catalytic site inhibitors, substituted 4,5,6,7-tetrahydrothieno[3,2-c]- and -[2,3-c]pyridines, is described. Optimisation of this series involved solution phase combinatorial synthesis and very potent compounds were prepared with IC50 values down to 140 ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(00)00153-x
更新日期:2000-09-01 00:00:00
abstract::Effects of retro-inverso (RI) modifications of HTLV-1 protease inhibitors containing a hydroxyethylamine isoster backbone were clarified. Construction of the isoster backbone was achieved by a stereoselective aldol reaction. Four diastereomers with different configurations at the isoster hydroxyl site and the scissile...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2010.02.019
更新日期:2010-04-01 00:00:00
abstract::Based on general SARs previously described for anti-HIV-1 diarylsulfone derivatives, a series of 2-amino- and 2-carboxamido-3-arylsulfonylthiophenes has been prepared and evaluated as potential antiviral and antitumor agents. In cell culture, some of the 2-aminothiophenes exhibited moderate and selective activity agai...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(00)00333-3
更新日期:2001-05-01 00:00:00
abstract::The emergence of multidrug-resistant bacteria has created an urgent need for antibiotics with a novel mechanism of action. The bacterial cell division protein FtsZ is an attractive target for the development of novel antibiotics. The benzo[c]phenanthridinium sanguinarine and the dibenzo[a,g]quinolizin-7-ium berberine ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2012.10.009
更新日期:2012-12-15 00:00:00
abstract::A CHCl3-soluble fraction of 70% EtOH extract of the flower of Kayea assamica from Myanmar exhibited 100% preferential cytotoxicity (PC(100)) against human pancreatic cancer PANC-1 cells under nutrient-deprived conditions at 1 microg/mL. Bioassay-guided fractionation and isolation afforded nine new coumarins, kayeassam...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2008.07.091
更新日期:2008-09-15 00:00:00
abstract::Protein geranylgeranylation reactions are dependent on the availability of geranylgeranyl diphosphate (GGDP), which serves as the isoprenoid donor. Inhibition of GGDP synthase (GGDPS) is of interest from a drug development perspective as GGDPS inhibition results in impaired protein geranylgeranylation, which in multip...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2017.02.066
更新日期:2017-04-15 00:00:00
abstract::A phytochemical investigation of the leaves of Erythrophleum fordii Oliv. has led to the isolation of three new cassaine-type diterpenoids, erythrofordin A (1), erythrofordin B (2) and erythrofordin C (3), as well as a norcassaine diterpenoid with a novel skeleton, norerythrofordin A (4), and 27 known compounds (5-31)...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2008.09.021
更新日期:2008-11-15 00:00:00
abstract::Efficient preparations of the titled compounds are described, their antimicrobial activity and mutagenic properties being evaluated. Some of the studied compounds are nonmutagenic and present a MIC as low as some of the usual standards in the field. ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(97)00138-7
更新日期:1997-10-01 00:00:00
abstract::The activity of p90 ribosomal S6 kinase 2 (RSK2) has emerged as an attractive target for cancer therapy due to its role in the regulation of diverse cellular processes, such as cell transformation and proliferation. Several pan-RSK inhibitors have been identified with BI-D1870 and the pseudo-analogs LJH685 and LJI308 ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2019.115303
更新日期:2020-03-01 00:00:00
abstract::A series of 1-(1-arylethylidene)thiosemicarbazide compounds and their analogues were synthesized and characterized by 1H NMR, MS. Their tyrosinase inhibitory activities were investigated by an assay based on the catalyzing ability of tyrosinase for the oxidation of L-DOPA, comparing with 4-methoxycinnamic acid and arb...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2007.10.102
更新日期:2008-02-01 00:00:00
abstract::The potency of a series of eight compounds structurally related with 4,5,6,7-tetrahydroisoxazolo[5,4-c]pyridin-3-ol (THIP), a potent GABA(A) partial agonist exhibiting GABA(C) rho(1) antagonist effect (K(i)=25 microM), was determined electrophysiologically using homomeric human GABA(C) rho(1) receptors expressed in Xe...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2003.09.016
更新日期:2003-11-17 00:00:00
abstract::Herpes Simplex Virus (HSV) infections are among the most common human diseases. In this work, we assess the structural features and electronic properties of a series of ten 1-hydroxyacridone derivatives (1a-j) recently described as a new class of non-nucleoside inhibitors of Herpes Simplex Virus-1 (HSV-1). Based on th...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2007.09.032
更新日期:2008-01-01 00:00:00
abstract::Fibroblast growth factor receptor 3 (FGFR3) is an attractive therapeutic target for the treatment of bladder cancer. We identified 1,3,5-triazine derivative 18b and pyrimidine derivative 40a as novel structures with potent and highly selective FGFR3 inhibitory activity over vascular endothelial growth factor receptor ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2020.115453
更新日期:2020-05-15 00:00:00
abstract::Carboranes (dicarba-closo-dodecaboranes) are a class of carbon-containing polyhedral boron-cluster compounds having remarkable chemical and thermal stability, and hydrophobic character. These features may allow application of carboranes as a new hydrophobic core structure in biologically active molecules that interact...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2005.06.061
更新日期:2005-12-01 00:00:00
abstract::Scutione (1), a new norquinonemethide triterpene with a netzahualcoyene type skeleton, has been isolated from the root bark of Maytenus scutioides (Celastraceae) by bioactivity-directed fractionation. The structure of 1 has been elucidated by means of 1H and 13C NMR spectroscopic studies, including 1H-13C heteronuclea...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/0968-0896(96)00078-8
更新日期:1996-06-01 00:00:00
abstract::Hypertension is a diverse illness interlinked with cerebral, cardiovascular (CVS) and renal abnormalities. Presently, the malady is being treated by focusing on Renin- angiotensin system (RAS), voltage-gated calcium channels, peripheral vasodilators, renal and sympathetic nervous systems. Cardiovascular and renal abno...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2020.115466
更新日期:2020-05-15 00:00:00
abstract::Friedreich's Ataxia (FRDA) is an incurable genetic disease caused by an expanded trinucleotide AAG repeat within intronic RNA of the frataxin (FXN) gene. We have previously demonstrated that synthetic antisense oligonucleotides or duplex RNAs that are complementary to the expanded repeat can activate expression of FXN...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2020.115472
更新日期:2020-06-01 00:00:00
abstract::A fluorescent cyclodextrin-Tb(III) complex is successfully synthesized and can include bile salts in its hydrophobic cavities. Therefore, it can efficiently induce the secondary assembly of small bile salt primary micelles to large micelle aggregates, and the aggregation process can be easily observed by transmission ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2006.06.002
更新日期:2006-10-01 00:00:00
abstract::Small molecules are central players in chemical biology studies. They promote the perturbation of cellular processes underlying diseases and enable the identification of biological targets that can be validated for therapeutic intervention. Small molecules have been shown to accurately tune a single function of plurip...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.bmc.2014.04.019
更新日期:2014-08-15 00:00:00
abstract::The present quantitative structure-activity relationship (QSAR) study attempts to explore the structural and physicochemical requirements of mannitol derivatives for HIV protease inhibitory activity using linear free energy related model of Hansch. QSAR models have been developed using electronic (Hammett sigma), hydr...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2005.09.022
更新日期:2006-02-15 00:00:00
abstract::Claisen-Schmidt condensation of 3-formyl-9-methylcarbazole with various amides of 3-aminoacetophenone afforded N-{3-[3-(9-methyl-9H-carbazol-3-yl)-acryloyl]-phenyl}-benzamide/amide derivatives. All compounds were investigated for their in vitro xanthine oxidase (XO), tyrosinase and melanin production inhibitory activi...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2012.07.001
更新日期:2012-09-15 00:00:00
abstract::Electronic parameters (molecular electrostatic potential MEP, charge distribution on the nitrogen atoms, dipole moment mu and ionization potential IP) were calculated by semiempirical quantum chemistry methods for 2 sets (X = H and m-CF3, the syn- and anti-rotamers of the latter being considered separately) of the 6-a...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(00)82176-8
更新日期:1994-08-01 00:00:00