Abstract:
:Two novel flavonoids (±)-Anastatins A and B as well as 14 analogs, which containing a benzofuran moiety, were synthesized by using halogenation, Suzuki coupling reaction and an oxidation/Oxa-Michael reaction cascade as the key steps. The structures of the new flavonoids were confirmed by 1H NMR, 13C NMR and HRMS. The antioxidant activities of them as well as the key intermediates were evaluated by ferric reducing antioxidant power (FRAP) assay and the active compounds were evaluated in the PC12 cell model of hydrogen peroxide (H2O2)-induced oxidative damage. SAR studies suggested that, for in vitro antioxidant activity, aurone derivatives showed better bioactivity than flavone counterparts. However, cyclization to benzofuran and connecting the two conjugated parts as a whole conjugated system by a double bond diminished the in vitro antioxidant activity. Among them, the most potent compound 24c was significantly decreased H2O2-caused cell injury. The apoptotic rate (Annexin V+) of H2O2-damaged PC12 cells was 60.7% while that of the compound 24c-treated cells decreased to 5.9% and 4.1% at 10 μM and 100 μM respectively.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Pan G,Li X,Zhao L,Wu M,Su C,Li X,Zhang Y,Yu P,Teng Y,Lu Kdoi
10.1016/j.ejmech.2017.06.054subject
Has Abstractpub_date
2017-09-29 00:00:00pages
577-589eissn
0223-5234issn
1768-3254pii
S0223-5234(17)30508-1journal_volume
138pub_type
杂志文章abstract::The synthetic estramustine (EM) and natural podophyllotoxin (PODO) anti-mitotic agents that inhibit tubulin polymerization are known anticancer agents. As low bioavailability limits their anticancer properties, we investigated whether conjugation with PAMAM dendrimer (D) could enhance the activity of D-EM and D-PODO b...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2013.07.007
更新日期:2013-10-01 00:00:00
abstract::PIM kinase family (PIM-1, PIM-2 and PIM-3) is an appealing target for the discovery and development of selective inhibitors, useful in various disease conditions in which these proteins are highly expressed, such as cancer. The significant effort put, in the recent years, towards the development of small molecules exh...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2019.02.022
更新日期:2019-04-15 00:00:00
abstract::A series of novel 2-arylamino-3-(arylsulfonyl)quinoxalines was synthesized through a newly developed approach. All synthesized target compounds were screened for their cytotoxicities against cancer cell lines including PC3, A549, HCT116, HL60 and KB. Representative compounds with favorable cytotoxicities were tested f...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2011.09.015
更新日期:2011-11-01 00:00:00
abstract::Our previous studies reveal that indolizinoquinolinedione scaffold is a base to develop novel DNA topoisomerase IB (TOP1) catalytic inhibitors. In this work, twenty-three novel indolizinoquinolinedione derivatives were synthesized. TOP1-mediated relaxation, nicking and unwinding assays revealed that three fluorinated ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.04.040
更新日期:2018-05-25 00:00:00
abstract::Two groups of coumarin-pyrazoline hybrids were synthesized. The target compounds were obtained by cyclization of the coumarin chalcones with various substituted hydrazines to produce the corresponding pyrazolines through 1,4-addition on α,β-unsaturated carbonyl system. Selected compounds were investigated for their an...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2012.12.004
更新日期:2013-02-01 00:00:00
abstract::In the last two decades, trans-sialidase of Trypanosoma cruzi (TcTS) has been an important pharmacological target for developing new anti-Chagas agents. In a continuous effort to discover new potential TcTS inhibitors, 3-amino-3-arylpropionic acid derivatives (series A) and novel phthaloyl derivatives (series B, C and...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.07.005
更新日期:2018-08-05 00:00:00
abstract::We have synthetised a series of oxidised apomorphine derivatives (orto and para quinones 2-5), in order to analyse their vascular activity. We have performed radioligand binding assays on rat cortical membranes and functional studies on rat aortic rings. Instead the relaxant activity exhibited by (R)-apomorphine, o-qu...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0223-5234(03)00057-6
更新日期:2003-05-01 00:00:00
abstract::Pancreatic cancer is one of the most deadly neoplasm with a 5-year survival rate of less than 6% owing to its remarkable tolerance to nutrient starvation, and new drugs and treatment strategies are urgently needed. During a project aiming at discovery of anticancer agents, we performed a structure modification on poly...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2019.03.013
更新日期:2019-05-15 00:00:00
abstract::To identify ALK and ROS1 dual inhibitors conferring resistance to ALK secondary mutations, especially 'gatekeeper' L1196 M and the most predominant ceritinib-resistant G1202R mutations, a series of novel 2,4-diarylaminopyrimidine analogues were designed and synthesized by incorporating 2-alkoxy-6-alicyclic aminopyridi...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.09.012
更新日期:2018-10-05 00:00:00
abstract::Malignant tumor cells have been found to have high levels of reactive oxygen species such as hydrogen peroxide (H2O2), supporting the hypothesis that a prodrug could be activated by intracellular H2O2 and lead to a potential antitumor therapy. In this study, the 7-ethyl-10-boronic acid camptothecin (B1) was synthesize...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2016.03.063
更新日期:2016-06-30 00:00:00
abstract::In some organisms, environmental stress triggers trehalose biosynthesis that is catalyzed collectively by trehalose 6-phosphate synthase, and trehalose 6-phosphate phosphatase (T6PP). T6PP catalyzes the hydrolysis of trehalose 6-phosphate (T6P) to trehalose and inorganic phosphate and is a promising target for the dev...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2017.02.001
更新日期:2017-03-10 00:00:00
abstract::Polyether ionophore antibiotics (ionophores) represent a large group of more than 120 lipid-soluble compounds that are widely used in veterinary medicine because of their significant antimicrobial activity. In addition to the industrial use of ionophores, some of them effectively and selectively inhibit properties of ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.ejmech.2019.01.034
更新日期:2019-03-15 00:00:00
abstract::Protein tyrosine phosphatases 1B (PTP1B) is a promising and validated therapeutic target to effectively treat T2DM and obesity. However, the development of charged PTP1B inhibitors was restricted due to their low cell permeability and poor bioavailability. Based on active natural products, two series of uncharged cate...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2017.05.007
更新日期:2017-08-18 00:00:00
abstract::A series of new dithiocarbamates containing a 2(5H)-furanone-piperazine group was synthesized. These compounds show good in vitro cytoxic activity. Among them, compound 6c exhibits the best inhibitory activity against HeLa cell lines with an IC50 of 0.06 ± 0.01 μM for 72 h, and it has good inhibitory activity against ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.05.056
更新日期:2018-07-15 00:00:00
abstract::Taking the rising interest in jasmone structure based fragrant compounds into account it has been decided to take up an attempt to synthesize the new heterocyclic derivatives of this 2,3-disubstituted cyclopentenone, which could be characterized by the ability of interaction with the same receptors with which jasmone ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2008.07.028
更新日期:2009-07-01 00:00:00
abstract::A series of tocopherol-based cationic lipid 3a-3f bearing a pH-sensitive imidazole moiety in the dipeptide headgroup and a reduction-responsive disulfide linkage were designed and synthesized. Acid-base titration of these lipids showed good buffering capacities. The liposomes formed from 3 and co-lipid 1, 2-dioleoyl-s...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2017.02.010
更新日期:2017-03-31 00:00:00
abstract::Identifying desired interactions with a target receptor is often the first step when designing new active compounds. However, attention should also be focused on contacts with other proteins that result in either selective or polypharmacological compounds. Here, the search for the structural determinants of selectivit...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.04.010
更新日期:2018-05-10 00:00:00
abstract::Interferon (INF) is an effective drug in treating several human diseases. Ge-132, which is the most common and well-studied organic germanium, has been reported to induce INF-gamma and has undergone clinical trials with promising preclinical results. However, it has been reported that long-term ingestion or high doses...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2009.12.069
更新日期:2010-04-01 00:00:00
abstract::Current healthcare has significantly increased the average life expectancy, leading to a consequently greater incidence of age-related diseases, such as Alzheimer's disease. Following a multitarget approach, in this paper a series of polycyclic maleimide-based derivatives were designed and synthesized aimed at simulta...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.12.003
更新日期:2019-02-01 00:00:00
abstract::Tuberculosis (TB) remains one of the most widespread and leading deadliest diseases, around one-third of the world's population harbor a latent infection by Mycobacterium tuberculosis (MTB), and 5-10% eventually develop an active TB. The emergency of MTB new virulent forms as well as the co-infection between MTB and H...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.ejmech.2018.01.080
更新日期:2018-02-25 00:00:00
abstract::The rising incidence of diabetes and confines allied with clinical therapies emphasized the need to explore new molecular targets to develop novel, effective and safer antihyperglycemic agents. Excessive endogenous glucose production by gluconeogenesis is a primary determinant of hyperglycemia in patients with type 2 ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.ejmech.2017.09.029
更新日期:2017-12-01 00:00:00
abstract::A series of novel 2-aminobenzamide derivatives decorated with thioquinazolinone were designed and synthesized as histone deacetylase (HDAC) inhibitors. These derivatives were evaluated for their antiproliferative activities against several human cancer cell lines including A375, Hela, A549, HCT116 and SMMC7721. It's s...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2019.04.017
更新日期:2019-07-01 00:00:00
abstract::A comparative study of aryl phosphoramidate and aryl thiophosphoramidate derivatives of 2',3'-didehydro-2',3'-dideoxythymidine (d4T) was performed. The study focused on the nature of the substituents and the influence of a thiophosphoramidate in the structure of these derivatives. The rate of alkaline hydrolysis of th...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2004.04.002
更新日期:2004-08-01 00:00:00
abstract::Novel heterocyclic-fused pyrimidines viz pyrrolo[1,2-c]pyrimidines 4-8, pyrimido[5,4-e]pyrrolo[1,2-c]pyrimidines 9-14, pyrimido[4',5':4,5]pyrimido[1,6-a]azepines 16-18, pyrrolo[1',2':1,6]pyrimido[4,5-d][1,3]thiazines 19a,b and 1,3-thiazino[4',5':4,5]pyrimido[1,6-a]-azepine 19c were designed and synthesized as potentia...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2013.08.042
更新日期:2013-11-01 00:00:00
abstract::A series of (2E,4E)-1-(2-hydroxyphenyl)-5-phenylpenta-2,4-dien-1-ones (3a-r) and (2Z,4E)-3-hydroxy-1-(2-hydroxyphenyl)-5-phenylpenta-2,4-dien-1-ones (6a-l) were synthesized and evaluated in vitro as inhibitors of the two human Monoamine oxidase (hMAO) isoforms, MAO-A and MAO-B. Most of the compounds showed a selective...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2012.11.006
更新日期:2013-01-01 00:00:00
abstract::Novel drugs are urgently needed to combat hepatitis B virus (HBV) infection due to drug-resistant virus. In this paper, a series of novel 4-monosubstituted 2'-deoxy-2'-β-fluoro-4'-azido-β-d-arabinofuranosyl 1,2,3-triazole nucleoside analogues (1a-g) were designed, synthesized and screened for in vitro anti-HBV activit...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2017.11.028
更新日期:2018-01-01 00:00:00
abstract::The worldwide outbreak of severe acute respiratory syndrome (SARS) in 2003 had caused a high rate of mortality. Main protease (Mpro) of SARS-associated coronavirus (SARS-CoV) is an important target to discover pharmaceutical compounds for the therapy of this life-threatening disease. During the course of screening new...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2017.05.045
更新日期:2017-09-08 00:00:00
abstract::[1,2,4]Triazolo[1,5-c]pyrimidine is a promising platform to develop adenosine receptor antagonists. Here, we tried to investigate the effect of the substituent at the 8 position of [1,2,4]triazolo[1,5-c]pyrimidine derivatives on affinity and selectivity at the human A3 adenosine receptor subtype. In particular, we hav...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.08.042
更新日期:2018-09-05 00:00:00
abstract::This study is focused on a new series of benzylindole derivatives with various substituents at the benzene-fused ring, suggested by our 3D pharmacophore model developed for HIV-1 integrase inhibitors (INIs). All synthesized compounds proved to be active in the nanomolar range (6-35 nM) on the strand-transfer step (ST)...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2010.12.012
更新日期:2011-02-01 00:00:00
abstract::Intestinal parasites delay mental and physical development in children. Infection with these parasites can result in complications during pregnancy and alter the health of newborns, which has long-term effects on educational attainment and economic productivity. The appearance of resistance against classical drug trea...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.ejmech.2017.02.005
更新日期:2017-03-31 00:00:00