Abstract:
:The synthesis of new 1,4-bisalkylamino (2-4) and 1-alkylamino-4-chloro (5-6) substituted benzo[g]phthalazines is reported. Compounds 2-4 and 6 were prepared both in the free and heteroaromatic ring protonated forms. Bifunctional 6 contains the 1,4-bisaminopropylpiperazine chain as a linker between the two heteroaromatic units, whereas 5 is its monofunctional analogue. The in vitro antitumour activity of the synthesized compounds has been tested against human colon, breast and lung carcinoma cells, and also against human glioblastoma cells. Results obtained show that all of them are active in all cases, but bifunctional 6.2HCl is remarkably effective against the four cell lines tested, exhibiting IC50 values in the range of 10(-7) M, similar to those found for doxorubicin. The bifunctional structure of 6.2HCl enhances activity with respect to the monofunctional related compounds 5 and 7, leading to the highest activity among all the compounds tested. Molecular modelling of 6 suggests that those results could be indicative of DNA bisintercalation, which should be specially favoured in the diprotonated form 6.2HCl, a compound suitable for being studied more in depth in further biological tests. Measure of the DNA thermal melting curves show that the linear rise in Tm for bifunctional 6.2HCl is nearly twice than that one obtained for monofunctional 5, and supports the DNA-binding hypothesis.
journal_name
Bioorg Med Chemjournal_title
Bioorganic & medicinal chemistryauthors
Galisteo J,Navarro P,Campayo L,Yunta MJ,Gómez-Contreras F,Villa-Pulgarin JA,Sierra BG,Mollinedo F,Gonzalez J,Garcia-España Edoi
10.1016/j.bmc.2010.05.053subject
Has Abstractpub_date
2010-07-15 00:00:00pages
5301-9issue
14eissn
0968-0896issn
1464-3391pii
S0968-0896(10)00484-0journal_volume
18pub_type
杂志文章abstract::A phytochemical analysis of Aster sedifolius has led to the isolation of three novel triterpenoid saponins, based on an oleane-type skeleton and named astersedifolioside A (1), B (2) and C (3). On the basis of chemical, and 2D NMR and mass spectrometry data, the structures of the new compounds were elucidated as 3-O-[...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2004.06.042
更新日期:2004-09-15 00:00:00
abstract::(R)-1-(10,11-Dihydro-dibenzo[b,f]azepin-5-yl)-3-methylamino-propan-2-ol ((R)-OHDMI) and (S,S)-1-cyclopentyl-2-(5-fluoro-2-methoxy-phenyl)-1-morpholin-2-yl-ethanol (CFMME) were synthesized and found to be potent inhibitors of norepinephrine reuptake. Each was labelled efficiently in its methyl group with carbon-11 (t(1...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2006.10.065
更新日期:2007-01-15 00:00:00
abstract::A group of regioisomeric (E)-1,3-diarylprop-2-en-1-one derivatives possessing a COX-2 SO2Me pharmacophore at the para position of the C-1 or C-3 phenyl ring, in conjunction with a C-3 or C-1 phenyl (4-H) or substituted-phenyl ring (4-F, 4-OMe and 4-Me), were designed for evaluation as selective cyclooxygenase-2 (COX-2...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2005.11.041
更新日期:2006-04-15 00:00:00
abstract::Lamin A contributes to the structure of nuclei in all mammalian cells and plays an important role in cell division and migration. Mature lamin A is derived from a farnesylated precursor protein, known as prelamin A, which undergoes post-translational cleavage catalyzed by the zinc metalloprotease STE24 (ZPMSTE24). Acc...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2018.10.001
更新日期:2018-11-01 00:00:00
abstract::A continuous flow process is presented that enables the efficient synthesis and derivatization of 1,2,4-thiadiazole heterocycles. Special attention was given to the safe handling of the versatile yet hazardous trichloromethane sulfenylchloride reagent including its in-line quenching in order to eliminate malodourous a...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2017.01.022
更新日期:2017-12-01 00:00:00
abstract::Neurotoxic organophosphorus compounds (OPs), which are used as pesticides and chemical warfare agents lead to more than 700,000 intoxications worldwide every year. The main target of OPs is the inhibition of acetylcholinesterase (AChE), an enzyme necessary for the control of the neurotransmitter acetylcholine (ACh). T...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2013.05.063
更新日期:2013-09-15 00:00:00
abstract::We developed Wnt/β-catenin inhibitors by identifying 13 number of 3-arylethynyl-substituted pyrido[2,3,-b]pyrazine derivatives that were able to inhibit the Wnt/β-catenin signal pathway and cancer cell proliferation. In the optimization process, a series of 2,3,6-trisubstituted pyrido[2,3,-b]pyrazine core skeletons sh...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2011.07.028
更新日期:2011-09-15 00:00:00
abstract::A series of novel 4-(2-fluorophenoxy)quinoline derivatives containing 4-oxo-1,4-dihydrocinnoline-3-carboxamide moiety were designed, synthesized and evaluated for their in vitro biological activities against c-Met kinase and six typical cancer cell lines (A549, H460, HT-29, MKN-45, U87MG and SMMC-7721). All the prepar...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2013.04.013
更新日期:2013-06-01 00:00:00
abstract::A series of perbutyrylated glycosides of podophyllotoxin and its derivatives were synthesized and evaluated for their antitumor activity in vitro. Most of them exhibit cytotoxic activity against a panel of five human cancer cell lines (HL-60, SMMC-7721, A-549, MCF-7, SW480) using MTT assays. Among the synthesized comp...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2015.02.021
更新日期:2015-04-01 00:00:00
abstract::The farnesoid X receptor (FXR) belonging to the metabolic subfamily of nuclear receptors is a ligand-induced transcriptional activator. Its central function is the physiological maintenance of bile acid homeostasis including the regulation of glucose and lipid metabolism. Accessible structural information about its li...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2011.09.039
更新日期:2011-11-15 00:00:00
abstract::Four kinds of tetravalent double-headed glycoclusters [(LacNAc)4-DHGs] were designed with linkers of varying lengths consisting of alkanedioic carboxyamido groups (C6, C12, C18 and C24) between two bi-antennary LacNAc-glycosides. These glycoclusters served as high-affinity cross-linking ligands for the LacNAc-binding ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2015.11.026
更新日期:2016-01-01 00:00:00
abstract::Hepatitis A virus (HAV) 3C proteinase is a picornaviral cysteine proteinase that is essential for cleavage of the initially synthesized viral polyprotein precursor to mature fragments and is therefore required for viral replication in vivo. Since the enzyme generally recognizes peptide substrates with L-glutamine at t...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(99)00006-1
更新日期:1999-04-01 00:00:00
abstract::Structure-activity relationships of amide-phosphonate derivatives as inhibitors of the human soluble epoxide hydrolase (sEH) were investigated. First, a series of alkyl or aryl groups were substituted on the carbon alpha to the phosphonate function in amide compounds to see whether substituted phosphonates can act as ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2015.10.016
更新日期:2015-11-15 00:00:00
abstract::A molecular hybridization approach is a powerful tool in the design of new molecules with improved affinity and efficacy. In this context, a series of diarylpyrimidine-quinolone hybrids were synthesized and evaluated against both wt HIV-1 and mutant viral strains. The most active hybrid 5a displayed an EC50 value of 0...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2015.03.037
更新日期:2015-07-01 00:00:00
abstract::A set of phosphonic acid derivatives (1-4) of pyridoxal 5'-phosphate (PLP) was synthesized and characterized biochemically using purified murine pyridoxal phosphatase (PDXP), also known as chronophin. The most promising compound 1 displayed primarily competitive PDXP inhibitory activity with an IC50 value of 79μM, whi...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2015.02.049
更新日期:2015-06-15 00:00:00
abstract::A novel series of thaizole and oxazole containing phenoxy acetic acid derivatives is reported as PPAR-pan agonists. Incorporation of structurally constrained oxime-ether based linker in the chemotype of a potent PPARδ selective agonist GW-501516 was adapted as designing strategy. In vitro, selected test compounds 12a,...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2010.12.023
更新日期:2011-01-15 00:00:00
abstract::5-Bromouracil ((Br)U) was incorporated into three types of synthetic RNA and the products of the photoirradiated (Br)U-containing RNAs were investigated using HPLC and MS analysis. The photoirradiation of r(GCA(Br)UGC)(2) and r(CGAA(Br)UUGC)/r(GCAAUUCG) in A-form RNA produced the corresponding 2'-keto adenosine ((keto...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2012.11.010
更新日期:2013-01-15 00:00:00
abstract::D3 receptor radioligands (E)-4,3,2-[11C]methoxy-N-4-(4-(2-methoxyphenyl)piperazin-1-yl)butyl-cinnamoylamides (4-[11C]MMC, [11C]1a; 3-[11C]MMC, [11C]1b; and 2-[11C]MMC, [11C]1c) were synthesized for evaluation as novel potential positron emission tomography (PET) imaging agents for brain D3 receptors. The new tracers 4...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2005.06.055
更新日期:2005-11-15 00:00:00
abstract::Novel amidochromen-4-one analogs 8a-k and 9a-f were prepared and studied for their IL-5 inhibitory activity. Among the synthesized compounds, (6-benzamido-2-cyclohexyl-4-oxo-4H-chromen-3-yl)methyl acetate (8a, 95% inhibition at 30 μM, IC50=6.1 μM) exhibited potent IL-5 inhibitory activity. The conformational restricto...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2015.03.045
更新日期:2015-05-15 00:00:00
abstract::Histamine H(1) and serotonin 5-HT(2A) receptors present in the CNS have been implicated in various neuropsychiatric disorders. 9-Aminomethyl-9,10-dihydroanthracene (AMDA), a conformationally constrained diarylalkyl amine derivative, has affinity for both of these receptors. A structure-affinity relationship (SAFIR) st...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2009.08.016
更新日期:2009-09-15 00:00:00
abstract::Eight novel 2-(2,6-dioxopiperidin-3-yl)phthalimidine EM-12 dithiocarbamates 9 and 10, N-substituted 3-(phthalimidin-2-yl)-2,6-dioxopiperidines 11-14 and 3-substituted 2,6-dioxopiperidines 16 and 18 were synthesized as tumor necrosis factor-α (TNF-α) synthesis inhibitors. Synthesis involved utilization of a novel conde...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2011.05.029
更新日期:2011-07-01 00:00:00
abstract::Platinum compounds are the first-line therapy for many types of cancer. However, drug resistance has frequently been reported for and is a major limitation of platinum-based chemotherapy in the clinic. In the current study, we examined the anti-tumor activity of phomoxanthone A (PXA), a tetrahydroxanthone dimer isolat...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2019.115044
更新日期:2019-10-01 00:00:00
abstract::Anthraquinone-based compounds are attractive target for the design of new anticancer drugs. We have previously described a series of 1,5- and 1,4-difunctionalized anthraquinones, which exhibit different spectra of potency, together with human telomerase evaluation. The present study details the preparation of further,...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2004.09.001
更新日期:2004-12-01 00:00:00
abstract::Detergents such as Triton X-100 are often used in drug discovery research to weed out small molecule promiscuous and non-specific inhibitors which act by aggregation in solution and undesirable precipitation in aqueous assay buffers. We evaluated the effects of commonly used detergents, Triton X-100, Tween-20, Nonidet...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2009.03.050
更新日期:2009-05-01 00:00:00
abstract::The aim of this work was to synthesize a set of heterocyclic derivatives of lupane, lup-20(29)-ene, and 18α-oleanane, and to investigate their cytotoxic activities. Some of those heterocycles were previously known in the oleanane (allobetulin) group; however, to our knowledge the syntheses and biological activities of...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2012.03.066
更新日期:2012-06-01 00:00:00
abstract::A series of xanomeline analogs were synthesized and evaluated for binding at the M(1) muscarinic acetylcholine receptor (M(1) receptor). Specifically, compounds that substitute the O-hexyl chain of xanomeline with polar, ionizable, or conformationally restricted moieties were assessed for their ability to bind to the ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2007.10.058
更新日期:2008-02-01 00:00:00
abstract::With the aim of developing small molecular non-peptide beta-secretase (BACE) inhibitors, Leu*Ala hydroxyethylene (HE) was investigated as a scaffold to design and synthesize a series of compounds. Taking advantage of efficient combinatorial synthesis approaches and molecular modeling, extensive structure-activity rela...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2006.02.024
更新日期:2006-07-01 00:00:00
abstract::Novel benzimidazolium salts were synthesized as N-heterocyclic carbene (NHC) precursors, these NHC precursors were metallated with Ag2O in dichloromethane at room temperature to give novel silver(I)-NHC complexes. Structures of these benzimidazolium salts and silver(I)-NHC complexes were characterized on the basis of ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2016.06.004
更新日期:2016-08-15 00:00:00
abstract::The structural requirements of pyrrolo[2,3-d]pyrimidine nucleoside (PPN) analogues as adenosine kinase (AK) inhibitors were in silico studied by using CoMSIA method. All models were trained with 32 compounds, after which they were evaluated for predictive ability with additional 5 compounds. Quantitative information o...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2008.03.027
更新日期:2008-05-01 00:00:00
abstract::The fungus Aspergillus japonicus MF275 produces himeic acid A (1), containing a 4-pyrone ring, along with its congeners, himeic acids B (2) and C (3). During culture, 1 was gradually converted to 3, the corresponding 4-pyridone derivative. A study of the relationship between the culture pH and the fungal metabolites s...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2018.02.034
更新日期:2018-05-01 00:00:00