Ferrocenyl Schiff bases were synthesized with ferrocenecarboxaldehyde and reducted to secondary amines as *** earth complexes synthesized with these ligands have been characterized by ESI-MS,single-crystal X-ray dif&a...
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Ferrocenyl Schiff bases were synthesized with ferrocenecarboxaldehyde and reducted to secondary amines as *** earth complexes synthesized with these ligands have been characterized by ESI-MS,single-crystal X-ray dif&action *** cellular level,antitumor activity of the ligands and its complexes has been examined by MTT assay and flow *** molecular level,the interaction of complexes with DNA were investigated by UV-vis,fluorescence,CD spectroscopy,viscosity and agraose gel electrophoresis.
Endothelial lipase(EL) plays a central role in the negative regulation of high-density lipoprotein(HDL) particles,which makes it a potential target for raising plasma HDLc in the treatment of atherosclerosis.. Due...
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Endothelial lipase(EL) plays a central role in the negative regulation of high-density lipoprotein(HDL) particles,which makes it a potential target for raising plasma HDLc in the treatment of atherosclerosis.. Due to the lack of EL crystal *** group constructed its structure by homology modeling previously. Then,we conducted docking-based virtual screening combined with structure-based pharmacophore models to identify novel scaffolds of EL *** hits were identified in the enzyme assay and the most active compound,N35,showed an IC equal to 6 μ***,two-dimensional similarity search was performed to find their derivatives,which would be useful for further optimization of these drug candidates.
The "privileged structure"-guided scaffold repositioning is a primary strategy to identify structurally novel chemotypes by modifying the central core structure and the side-chain of the existing active comp...
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The "privileged structure"-guided scaffold repositioning is a primary strategy to identify structurally novel chemotypes by modifying the central core structure and the side-chain of the existing active compounds,or to exploit undescribed bioactivites by making full use of readily derivatized motifs with well-established synthetic ***,we report the discovery of antiviral agents(targeting HTV-1 reverse transcriptase-associated ribonuclease H and integrase) and anti-gout agents via'privileged scaffold' repositioning *** also discuss the basic tricks of exploiting privileged structures for scaffold repositioning.
A series of phenanthroimidazolederivates have been synthesized under microwave irradiationgive yields>90%.Compound 2 exhibit promising activityagainst the growth of HepG2 with the IC of 0.68.μ*** further studies s...
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A series of phenanthroimidazolederivates have been synthesized under microwave irradiationgive yields>90%.Compound 2 exhibit promising activityagainst the growth of HepG2 with the IC of 0.68.μ*** further studies show that 2 can decrease the mitochondrial membrane potential,DNA damage and ***,it's also discovered that 2 can inhibit the formation of neovascularization through zebrafishand tube formation ***,in vivo distribution and metabolism studies show that 2 can rapidly distributed in whole body and accumulated in tumor tissue of balb/c mice.
Steroids heterocyclic compounds formed by the fusion of A rings or D rings with heterocycles usually have good biological activities,and they have received extensive attention from pharmaceutical *** dehydroepiandrost...
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Steroids heterocyclic compounds formed by the fusion of A rings or D rings with heterocycles usually have good biological activities,and they have received extensive attention from pharmaceutical *** dehydroepiandrosterone as the staring material,we have synthesized a series of 15β,16β-methylene steroid-2-benzylidene-4,6-diene-3,17-dione *** reaction process is shown in Scheme *** the final structures are first reported and identified by NMR spectroscopys,and the yields of these products are moderate to good and the reaction conditions are *** in vitro cytotoxicity of this novel derivatives are undergoing.
Lymphoid-specific tyrosine phosphatase(LYP),as a member of lymphoid tyrosine phosphatase(PTPs) family,encoded by PTPN22,becomes a hit target for panel autoimmune disease *** find allosteric inhibitor NCl,which can...
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Lymphoid-specific tyrosine phosphatase(LYP),as a member of lymphoid tyrosine phosphatase(PTPs) family,encoded by PTPN22,becomes a hit target for panel autoimmune disease *** find allosteric inhibitor NCl,which can lock the catalytic WPD-loop and targeting a LYP-specific insert,showing the non-competitive inhibiting pattern compared to other traditional LYP inhibitor because WPD-Loop in LYP is unique within PTPs family and its conformation change influents the dephosphorylation activity of *** on the structual biology results,further structual modification were performed and a series of hydantoin compounds were synthesized.
siRNA has been widely applied in research and drug development due to its sequence-specific gene silencing ***,how to spatiotemporally control its function is still one of its ***,a fast and noninvasive trigger,is a p...
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siRNA has been widely applied in research and drug development due to its sequence-specific gene silencing ***,how to spatiotemporally control its function is still one of its ***,a fast and noninvasive trigger,is a promising tool for spatiotemporal control of gene ***,we designed and synthesized a new series of caged siKNAs modified with single cholesterol at the 5' terminal of antisense strand RNA through a photolabile linker(Chol-PL-siRNAs).We demonstrated that these caged siRNAs were successfully used to photochemically regulate both exogenous(firefly luciferase and GFP)and endogenous gene expression(mitotic kinesin-5,Eg5) in cells.
Studies have shown that high level of monoamine oxidase A(MAOA) which commonly used to treat neurological conditions such as depression promoted growth of high grade prostate cancer(PCa) progression,and the inhibi...
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Studies have shown that high level of monoamine oxidase A(MAOA) which commonly used to treat neurological conditions such as depression promoted growth of high grade prostate cancer(PCa) progression,and the inhibitor of MAOA,such as clorgyline,induced apoptosis of cancer cells in PCa *** findings suggest that antidepressant drugs that target MAOA may have applications in treating prostate *** we developed conjugates that combine a series of novel near-infrared(NIR) heptamethine indocyanine dyes for tumor targeting with the MAOA inhibitor isoniazide(INH).The results showed that some of them possessed prominent anti-tumor activity in PC3 ***,the combination of NIR dye specifically targeted tumor and MAOA inhibitor INH is an useful strategy and warrant further investigation.
Natural products are the sources of drug *** than half of the approved drugs are natural products,natural product mimics,or natural product inspired *** our efforts to discover novel agents to treat resistant bacteria...
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Natural products are the sources of drug *** than half of the approved drugs are natural products,natural product mimics,or natural product inspired *** our efforts to discover novel agents to treat resistant bacterial infections or cancers,we have been focusing on the total synthesis and SAR studies of biological active natural products,including aetheramide,dictyodendrins,nannocystin,scrabrosins and ***,we have completed the first total synthesis of albomycins,natural antibiotics initially isolated in *** the three natural albomycins,82 exhibited low nanomolar antibacterial activities against both G-positive and G-negative *** 82 showed excellent safety profile in cells and animals,and is a promising lead for developing novel *** synthesis and SAR studies on albomycins and other naturals products in our laboratory shall be reported.
Spurred by the encouraging clinical treatment of cancers with antibody drug conjugates(ADC),an emerging strategy with the use of small molecule drug conjugates(SMDC)manifests several advantageous properties,such as be...
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Spurred by the encouraging clinical treatment of cancers with antibody drug conjugates(ADC),an emerging strategy with the use of small molecule drug conjugates(SMDC)manifests several advantageous properties,such as better in vitro and in vivo stability,lower antigenicity,facile conjugation chemistry,lower manufacturing costs,and enhanced ability to
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