Hydrogen sulfide(H S),an important gasotransmitter,mediated several physiological conditions including cardiovascular problems and anticancer *** various pathway and underlining mechanism which exerted by H S donors...
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Hydrogen sulfide(H S),an important gasotransmitter,mediated several physiological conditions including cardiovascular problems and anticancer *** various pathway and underlining mechanism which exerted by H S donors remained the interest of ***,a series of novel H S releasing hybrids based on natural product oridonin were designed and synthesized for H S releasing ability and antitumor activity *** therapeutic efficacy and selectivity were observed,while further mechanism studies concerning H S mediated antiproliferative pathway were *** results warranted future exploration of H S donor molecules coupled with known structures of natural occurring compounds to harness the full potential of these hybrid compounds.
Statins are a class of HMG-CoA reductase inhibitors used as lipid-lowering drugs which found to effectively reduce the risk of cardiovascular disease .We have developed two universal statin processes(for atorvastatin,...
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Statins are a class of HMG-CoA reductase inhibitors used as lipid-lowering drugs which found to effectively reduce the risk of cardiovascular disease .We have developed two universal statin processes(for atorvastatin,rosuvastatin and pitavastatin,Figure 1) by 1)kinetic resolution of epoxybutanoate to introduce the C-3 chiral center and diastereoselective bromocylization of homoallylic carbonate to install C-5 chiral center for statin sidechain;2)catalyzed asymmetric Nozaki-Hiyama-Kishi coupling to furnish C-3 chiral center and Pd-catalyzed bromocylization of homoallyl alcohol to construct C-5 chiral center for statin *** processes were optimized for streamlined process and readily for application in industry.
A series of novel(5-oxazolyl)-phenylthiourea derivatives were synthesized and assayed to determine their in vitro broad-spectrum antiviral *** biological results showed that most of our synthesized compounds exhibit...
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A series of novel(5-oxazolyl)-phenylthiourea derivatives were synthesized and assayed to determine their in vitro broad-spectrum antiviral *** biological results showed that most of our synthesized compounds exhibited potent broad-spectrum antiviral ***,compounds 6 a(IC = 0.11-1.74 μM) and 6 b(IC = 1.26-3.28 μM) showed potent activity towards both RNA viruses(influenza A virus and coxsackievirus B3) and DNA viruses(HSV-1 and HBV) at low micromolar *** SAR study showed that for most synthesized compounds,the thiourea group was attached to the(5-oxazolyl)-phenyl group,which was favored for antiviral ***,they were IMPDH inhibitors.
Guaiane-type sesquiterpenes occur widely in nature and have been isolated and identified in many different *** natural products are known for their potent bioactivities,such as anti-inflammatory,antiviral,antimicrobia...
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Guaiane-type sesquiterpenes occur widely in nature and have been isolated and identified in many different *** natural products are known for their potent bioactivities,such as anti-inflammatory,antiviral,antimicrobial,anti-tumor,antioxidant and antiprotozoal properties.A convenient method for synthesizing guaiane-type sesquiterpenes compound 2 by using compound 1 with rhodium catalyst resulted in carbonyl ylide formation from the cyclization of the carbonyl group with the electrophilic rhodium ***,we have successfully finished compound *** we will wish to design and synthesize a novel series of guaiane-type sesquiterpenes derivatives from compound *** newly synthesized compounds will be tested in vitro and the inhibition of HepG-2 cells compared to untreated control cells was *** effects of the prepared compounds on HCC cell apoptosis will be further evaluated in our lab.
Quinolinone compounds are generally used in medicine and in the literature due to their broad biological effects,including antidepressant and anticonvulsant *** research group has been studying with the chemical struc...
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Quinolinone compounds are generally used in medicine and in the literature due to their broad biological effects,including antidepressant and anticonvulsant *** research group has been studying with the chemical structure and biological properties of the antidepressant effect of *** found solifenacin including isoquinoline showed antidepressant activity at a dose of 100 mg/*** research attempt to find the new antidepressant and anticonvulsant compounds with improved safety profile and therapeutic potency,a series of derivatives were synthesized and evaluated for their antidepressant *** 1 and2,both with electron-withdrawing substituent o-fluoro and o-chloro for the phenly ring,compounds 3(m-CH) and 4(m-OCH) with electron-donor groups,showed the most antidepressant effects in the forced swimming test(FST)(DID:82%,81%,72.5%and72.8%,respectively) at a dose of 30 mg/kg,which was greater than that or nearly equivalent to that of fluoxetine(79%).
Several diterpenes and norditerpenes with novel carbon skeletons were isolated from the Caribbean sea plume Pseudopterogorgia,such as caribenol A,caribenol B and aberrarone(Figure 1),they have shown biological activ...
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Several diterpenes and norditerpenes with novel carbon skeletons were isolated from the Caribbean sea plume Pseudopterogorgia,such as caribenol A,caribenol B and aberrarone(Figure 1),they have shown biological activity against Mycobacterium tuberculosis H37 Rv and antiplasmodial *** the sponge-derived isocyanoterpenes exhibit potent antimalarial *** these terpenoid natural products became attractive targets for the synthetic community due to their intriguing biological activities as well as their unique *** program aimed at a unified synthesis of these natural product and here we present our successful approach to caribenol A,caribenol B.
Many studies suggested that cancer stem cells play a key role in the cancer initiation,development,relapse and drug ***,calling for more anti-CSC compounds and study of their possible target are highly ***,small molec...
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Many studies suggested that cancer stem cells play a key role in the cancer initiation,development,relapse and drug ***,calling for more anti-CSC compounds and study of their possible target are highly ***,small molecules that can selectively ablate cancer stem cells(CSCs) are very *** identified a series of sesquiterpene lactones(SLs) and APD-cyclic depsipeptides that can selectively eradicate cancer stem *** Michael adduct of MCL(ACT001) has entered Phase I clinical trail in Australia as anti-glioblastoma drug ***001 has been designated as orphan drug candidate by *** outcome of Clinical I has been presented on the ACSO meeting:"At well-tolerated doses,ACT001 showed satisfactory bioavailability and preliminary evidence of anti-tumor activity in a subset of patients."
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 stems of Tinospora sinensis known as "Kuan-Jin-Teng" are used in traditional medicine for the treatment of rheumatoid arthritis(RA).To uncover the potential mechanism underlying Tinospora sinensis,a netw...
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The stems of Tinospora sinensis known as "Kuan-Jin-Teng" are used in traditional medicine for the treatment of rheumatoid arthritis(RA).To uncover the potential mechanism underlying Tinospora sinensis,a network pharmacology approach has been used in this *** identified 9 targets of 16 compounds from Tinospora sinensis that involve in NF-κB signaling pathway,JAK-STAT signaling pathway and MAPK signaling *** works predict Tinospora sinensis exerted rheumatoid arthritis effects via the key targets MAPKs,SYK,BTK,ZAP70,PRKCQ,IL2,JAK3 and the key biological processes of cytokine *** study provides clues to the researcher who explores pharmacological and molecular mechanism of Tinospora sinensis acting on rheumatoid arthritis.
Phenotypic screening of high quality compound library is one of the most effective strategy to obtain novel bioactive ***,our group have constructed a Wogonin-scaffold library with substituents diversity and successfu...
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Phenotypic screening of high quality compound library is one of the most effective strategy to obtain novel bioactive ***,our group have constructed a Wogonin-scaffold library with substituents diversity and successfully obtained a series of potent ***,we reported the synthesis of these compounds and evaluated the in vitro antitumor activity against a panel of human tumor cell *** of them showed good activity with a broad spectrum and preliminary structure-activity relationship for the substitutions were *** biological assays showed that the most potent compounds 18 n and 20 b could significantly enhance the intracellular ROS level and induce the cell apoptosis at low micromole *** similarity searching,CDK9 was identified as the potential target for 20 b,which could be a start point for next structure-based drug design.
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