Abstract:
:On the basis of previous study on 2-methylpyrimidine-4-ylamine derivatives I, further synthetic optimization was done to find potent PDHc-E1 inhibitors with antibacterial activity. Three series of novel pyrimidine derivatives 6, 11 and 14 were designed and synthesized as potential Escherichia coli PDHc-E1 inhibitors by introducing 1,3,4-oxadiazole-thioether, 2,4-disubstituted-1,3-thiazole or 1,2,4-triazol-4-amine-thioether moiety into lead structure I, respectively. Most of 6, 11 and 14 exhibited good inhibitory activity against E. coli PHDc-E1 (IC50 0.97-19.21 μM) and obvious inhibitory activity against cyanobacteria (EC50 0.83-9.86 μM). Their inhibitory activities were much higher than that of lead structure I. 11 showed more potent inhibitory activity against both E. coli PDHc-E1 (IC50<6.62 μM) and cyanobacteria (EC50<1.63 μM) than that of 6, 14 or lead compound I. The most effective compound 11d with good enzyme-selectivity exhibited most powerful inhibitory potency against E. coli PDHc-E1 (IC50=0.97 μM) and cyanobacteria (EC50=0.83 μM). The possible interactions of the important residues of PDHc-E1 with title compounds were studied by molecular docking, site-directed mutagenesis, and enzymatic assays. The results indicated that 11d had more potent inhibitory activity than that of 14d or I due to its 1,3,4-oxadiazole moiety with more binding position and stronger interaction with Lsy392 and His106 at active site of E. coli PDHc-E1.
journal_name
Bioorg Med Chemjournal_title
Bioorganic & medicinal chemistryauthors
He H,Wang W,Zhou Y,Xia Q,Ren Y,Feng J,Peng H,He H,Feng Ldoi
10.1016/j.bmc.2016.03.011subject
Has Abstractpub_date
2016-04-15 00:00:00pages
1879-88issue
8eissn
0968-0896issn
1464-3391pii
S0968-0896(16)30160-2journal_volume
24pub_type
杂志文章abstract::Some epimeric 20-hydroxy, 20-oxime, 16 alpha, 17 alpha-, 17,20- and 20,21-aziridine derivatives of progesterone were synthesized and evaluated as inhibitors of human 17 alpha-hydroxylase/C17,20-lyase (P450(17) alpha) and 5 alpha-reductase (5 alpha-R). The reduction of 16-dehydropregenolone acetate (3a) was reinvestiga...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(98)00110-2
更新日期:1998-10-01 00:00:00
abstract::Benzoxaboroles have garnered much attention in recent years due to their diverse applications in bio-sensing technology, material science, and therapeutic intervention. Part of the reason arises from the benzoxaboroles' unique chemical properties, especially in comparison to their acyclic boronic acid counterparts. Fu...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.bmc.2014.04.065
更新日期:2014-08-15 00:00:00
abstract::In lead optimization efforts starting from the tetrahydroisoquinoline (S)-1, we identified 2-{[(2R)-2-hydroxypropyl]amino}-1-[(1S)-8-methoxy-1-phenyl-3,4-dihydroisoquinolin-2(1H)-yl]ethanone ((1S)-8t) as a novel orally active small-molecule N-type calcium channel blocker without CYP inhibition liability. CYP3A4 inhibi...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2015.05.053
更新日期:2015-08-01 00:00:00
abstract::Eurycomanone (1) and 13β,21-epoxyeurycomanone (2) were isolated from Eurycoma longifolia for studies of lipolytic activity. Compound 1 enhanced lipolysis in adipocytes with an EC50 of 14.6μM, while its epoxy derivate, compound 2, had a stronger activity with an EC50 of 8.6μM. Based on molecular mechanistic study using...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2017.07.032
更新日期:2017-09-01 00:00:00
abstract::The transcription factor C/EBP-homologous protein (CHOP) is a key component of the terminal unfolded protein response (UPR) that mediates unresolvable endoplasmic reticulum stress-induced apoptosis. CHOP induction is known to cause cancer cell death. Chemicals that induce CHOP expression would thus be valuable as pote...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2015.06.011
更新日期:2015-08-01 00:00:00
abstract::Ten 1-phenyl-1H-pyrazolo[3,4-b]pyridine derivatives connected by a linker group to benzenesulfonamide moieties with different substituents in the 4-position were synthesized and assayed against Plasmodium falciparum. These ten compounds exhibited activity in vitro against the chloroquine-resistant clone W2 with IC50 v...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2016.07.049
更新日期:2016-09-15 00:00:00
abstract::2,3-Dihydro-6,7-dichloro-pyrido[2,3-b]pyrazine-8-oxide was synthesized and evaluated for in vitro/in vivo antagonistic activity at the strychnine insensitive glycine binding site on the NMDA receptor revealing it to be a useful tool to evaluate the effectiveness of glycine antagonists in vivo. ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(97)00156-9
更新日期:1997-12-01 00:00:00
abstract::NAD(P)H:quinone reductase 1 (QR1) belongs to a class of enzymes called cytoprotective enzymes. It exhibits its cancer protective activity mainly by inhibiting the formation of intracellular semiquinone radicals, and by generating α-tocopherolhydroquinone, which acts as a free radical scavenger. It is therefore believe...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2012.10.006
更新日期:2012-12-15 00:00:00
abstract::Peptide-semicarbazones derived from Z-Trp-Trp-Phe-aldehyde inhibit the chymotryptic activity of the human proteasome at nanomolar concentrations, but are less active in a NFkappaB reporter gene assay. Cyclic semicarbazones, in contrast, combine a strong inhibitory effect on the enzyme with an inhibition of NFkappaB si...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2008.02.042
更新日期:2008-04-15 00:00:00
abstract::A library of 117 chalcones was screened for efflux pump inhibitory (EPI) activity against NorA mediated ethidium bromide efflux. Five of the chalcones (5-7, 9, and 10) were active and two chalcones (9 and 10) were equipotent to reserpine with IC(50)-values of 9.0 and 7.7 μM, respectively. Twenty chalcones were subsequ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2012.05.025
更新日期:2012-07-15 00:00:00
abstract::We previously reported the discovery of 2-aryl-4-benzoyl-imidazoles (ABI-I) as potent antiproliferative agents for melanoma. To further understand the structural requirements for the potency of ABI analogs, gain insight in the structure-activity relationships (SAR), and investigate metabolic stability for these compou...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2011.06.084
更新日期:2011-08-15 00:00:00
abstract::Oligosaccharyltransferase (OST) catalyzes the transfer of a branched oligosaccharide from a dolichylpyrophosphate oligosaccharide (Dol-PP-OS) to the asparagine of a nascent polypeptide chain in vivo and peptide substrates in vitro. Here we report the isolation and purification of Dol-PP-OS from bovine pancreas and thy...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(98)00268-5
更新日期:1999-03-01 00:00:00
abstract::We investigated sequence-specific DNA alkylation using conjugates between the N-methylpyrrole (Py)-N-methylimidazole (Im) polyamide and the DNA alkylating agent, chlorambucil, or 1-(chloromethyl)-5-hydroxy-1,2-dihydro-3H-benz[e]indole (seco-CBI). Polyamide-chlorambucil conjugates 1-4 differed in the position at which ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2009.12.033
更新日期:2010-02-01 00:00:00
abstract::Substituted diphenyl sulfones (10a-n) were synthesised, and the structures were confirmed by NMR, LC-MS and X-ray crystallography. Their antagonistic activities towards 5-HT₆ receptor were assessed in a cell-based functional assay. Diphenyl sulfone 10a, in spite of being the smallest and simplest known sulfonyl-contai...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2013.05.040
更新日期:2013-08-01 00:00:00
abstract::Tryprostatin A is an inhibitor of breast cancer resistance protein, consequently a series of structure-activity studies on the cell cycle inhibitory effects of tryprostatin A analogues as potential antitumor antimitotic agents have been carried out. These analogues were assayed for their growth inhibition properties a...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2008.02.050
更新日期:2008-04-15 00:00:00
abstract::The binding specificities of the closely related lectins from Canavalia ensiformis and Dioclea grandiflora were examined using specifically O-alkylated mono- and disaccharides. Both lectins accept any substitution at the monosaccharide C2 hydroxyl group. The binding energy of C2-alkylated ligands-concanavalin A comple...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(96)00178-2
更新日期:1996-11-01 00:00:00
abstract::Searching for new substances with antileishmanial activity, we synthesized and evaluated a series of α,α-difluorohydrazide and α,α-difluoramides against Leishmania amazonensis arginase (LaArg). Four α,α-difluorohydrazide derivatives showed activity against LaArg with Ki in the range of 1.3-26 μM. The study of the kine...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2019.07.022
更新日期:2019-09-01 00:00:00
abstract::A general synthesis of alpha-1-C-substituted derivatives of fagomine (2-deoxynojirimycin-alpha-C-glycosides) by ring-opening reactions of an aziridine with various heteroatomic nucleophiles, including thiol, amine, alcohol, carboxylate and phosphate, is described. The nine-step reaction sequence proceeded in an overal...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2004.12.043
更新日期:2005-03-15 00:00:00
abstract::Adenylyl cyclases (ACs) are promising pharmacological targets for treating heart failure, cancer, and psychosis. Ribose-substituted nucleotides have been reported as a potent family of AC inhibitors. In silico analysis of the docked conformers of such nucleotides in AC permits assembly of a consistent, intuitive QSAR ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2007.02.014
更新日期:2007-04-15 00:00:00
abstract::1,11-Didechloro-6-methyl-4'-O-demethyl rebeccamycin (JDC-108), a rebeccamycin analog possessing potent anti-tumor activities, was prepared via a concise one-pot strategy in good yield. The interaction between JDC-108 and human serum albumin (HSA) was studied by spectroscopic methods including fluorescence spectroscopy...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2008.07.017
更新日期:2008-08-15 00:00:00
abstract::Structural variations of the lead compound FAUC 88 led to dopaminergic enynes with an extended pi-system when Pd-catalyzed cross coupling reactions were employed for the key reaction steps. The dienyne 9b displayed substantial affinity for the dopamine receptor subtype D3 and remarkable selectivity over D4. Compared t...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2005.04.047
更新日期:2005-07-15 00:00:00
abstract::Novel ent-kaurane glucosides were synthezised by a Koenigs-Knorr reaction between C17 and C19 alcohols derived from kaurenoic acid and 2,3,4,6-tetra-O-acetyl-glucopyranosyl bromide, followed by the hydrolysis of the acetates. Main products were assayed in vitro and in vivo against blood trypomastigote forms of Trypano...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2006.09.048
更新日期:2007-01-01 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::Vitamin D receptor (VDR) is a member of the nuclear receptor superfamily and regulates the expression of target genes through ligand binding. To express the target gene, coactivator binding to the VDR/ligand complex is essential. Although there are many coactivators in living cells, precise interactions between coacti...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2016.11.020
更新日期:2017-01-15 00:00:00
abstract::Introduction of an alkylcarboxylic acid unit, which is a partial structure of endogenous peroxisome proliferator-activated receptor (PPAR) ligands, into a phenethylphenylphthalimide skeleton, which possesses liver X receptor (LXR) antagonistic activity, afforded novel PPAR ligands. The results of structure-activity re...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2011.03.065
更新日期:2011-05-15 00:00:00
abstract::During the search for second-generation adenosine A(1) receptor antagonist alternatives to the clinical candidate 8-(3-oxa-tricyclo[3.2.1.0(2,4)]oct-6-yl)-1,3-dipropyl-3,7-dihydro-purine-2,6-dione (BG9719), we developed a series of novel xanthines substituted with norbornyl-lactones that possessed high binding affinit...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2006.01.021
更新日期:2006-06-01 00:00:00
abstract::A series of novel cinnamic acid secnidazole ester derivatives have been designed and synthesized, and their biological activities were also evaluated as potential inhibitors of FabH. These compounds were assayed for antibacterial activity against Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis and Staphylo...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2011.06.021
更新日期:2011-08-01 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::A series of benzoylpiperidine analogs related to 4a was prepared, and their ability to inhibit the uptake of [(14)C]-glycine in COS7 cells transfected with human glycine transporter type-2 (GlyT-2) was evaluated. Small structural changes to the benzoylpiperidine region of the molecule led to a significant decrease in ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2004.05.044
更新日期:2004-08-15 00:00:00
abstract::The effect of various natural flavonoids, cinnamic acid derivatives, and a series of synthetic flavones on cell proliferation was evaluated in vitro in a panel of established human and murine tumor cell lines. The most potent antiproliferative agents were caffeic acid n-butyl ester (12) > 2'-nitroflavone (26) > caffei...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2005.12.021
更新日期:2006-05-01 00:00:00