Abstract:
:A series of cis-2,6-dialkyl-4-chloro-tetrahydropyrans were prepared by means of an iron(III)-catalyzed process. The in vitro antiproliferative activities were examined in the human solid tumor cell lines A2780, SW1573, and WiDr. The results show that the presence of bulky substituents favors the Prins cyclization leading to new products with better activity profile against all cell lines tested.
journal_name
Bioorg Med Chem Lettjournal_title
Bioorganic & medicinal chemistry lettersauthors
Miranda PO,León LG,Martín VS,Padrón JI,Padrón JMdoi
10.1016/j.bmcl.2006.03.064subject
Has Abstractpub_date
2006-06-15 00:00:00pages
3135-8issue
12eissn
0960-894Xissn
1464-3405pii
S0960-894X(06)00363-5journal_volume
16pub_type
杂志文章abstract::Chelerythrine, an isoquinoline alkaloid isolated from the herbaceous perennial Chelidonium majus, was found to potently and selectively inhibit an isoform of recombinant human monoamine oxidase-A (MAO-A) with an IC50 value of 0.55 µM. Chelerythrine was a reversible competitive MAO-A inhibitor (Ki = 0.22 µM) with a pot...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2018.06.023
更新日期:2018-08-01 00:00:00
abstract::Acyl derivatives of 4-(aminomethyl)-N-hydroxybenzamide are potent sub-type selective HDAC6 inhibitors. Constrained heterocyclic analogs based on 1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazine show further enhanced HDAC6 selectivity and inhibitory activity in cells. Homology models suggest that the heterocyclic spacer can mo...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2014.10.022
更新日期:2014-12-01 00:00:00
abstract::A high throughput screen allowed the identification of N-hydroxyimide inhibitors of ERCC1-XPF endonuclease activity with micromolar potency, but they showed undesirable selectivity profiles against FEN-1. A scaffold hop to a hydroxypyrimidinone template gave compounds with similar potency but allowed selectivity to be...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2015.08.024
更新日期:2015-10-01 00:00:00
abstract::The structure of the S1P2 antagonist 1 has been modified with the aim of improving its oral bioavailability. The chemical modification of the alkyl chain and carboxylic acid moieties of 1 led to significant improvements in the oral exposure of compounds belonging to this series. The optimization of the ring size of th...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2016.01.031
更新日期:2016-02-15 00:00:00
abstract::10, 15, 20-Triphenyl-5-(4-hydroxy-3-(trimethylammonium)methyl)phenylporphyrin 4 and its zinc complex 5 have been synthesized and antibacterial activities have been studied for 4 and its derivative. Compound 4 showed stronger inhibition than that of 10, 15, 20-triphenyl-5-(4-hydroxy-3-(dimethylamine)methyl)phenylporphy...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(03)00053-2
更新日期:2003-03-24 00:00:00
abstract::PC-1 (NPP-1) inhibitors may be useful as therapeutics for the treatment of CDDP (calcium pyrophosphate dehydrate) deposition disease and osteoarthritis. We have identified a series of potent quinazolin-4-piperidin-4-ethyl sulfamide PC-1 inhibitors. The series, however, suffers from high affinity binding to hERG potass...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2009.04.006
更新日期:2009-06-15 00:00:00
abstract::N-Substituted cyclam-amino acid conjugates have been synthesised both in solution and on the solid phase. The DNA binding affinity of these species has been studied: the nature of the amino acid strongly influences the change in melting temperature suggesting that simple cyclam-peptide conjugates could interact with D...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2008.03.045
更新日期:2008-05-01 00:00:00
abstract::A MeOH extract of the dry root of Lithospermum erythrorhizon showed strong increasing effect on serine palmitoyltransferase (SPT) in normal human keratinocyte cells (HaCaT cells). Bioassay-guided separation on this extract using repeated chromatography resulted in the isolation of lithospermic acid (1) and two derivat...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2009.01.052
更新日期:2009-03-15 00:00:00
abstract::Prostate-specific membrane antigen (PSMA) is an important biological target for therapy and diagnosis of prostate cancer. In this study, novel multivalent PSMA inhibitors with glutamate-urea-lysine structures were designed to improve inhibition characteristics. Precursors of the novel inhibitors were prepared from glu...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2018.01.047
更新日期:2018-02-15 00:00:00
abstract::We have discovered a new class of colchicine-derived therapeutic agents for immune diseases including rejection of organ-transplantation and autoimmune disease. Compound 2, which had been developed to overcome poor pharmacokinetic properties of compound 1, a first-generation colchicine analog, turned out to show toxic...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2014.05.007
更新日期:2014-07-15 00:00:00
abstract::A novel series of hepatitis C virus (HCV) NS3/4A protease inhibitors bearing a P2-P4 macrocycle and a P1-P1' alpha-ketoamide serine trap is reported. The NS3 protease, which is essential for viral replication, is considered one of the most attractive targets for developing novel anti-HCV therapies. The optimization of...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2009.02.079
更新日期:2009-04-15 00:00:00
abstract::Chemiluminescence experiments demonstrate that simple nitroalkenes release low levels of nitric oxide. UV and EPR measurements suggest but cannot confirm direct NO release from nitroalkenes. Given the biological activity of nitrated unsaturated fatty acids, these results suggest the possible metabolic conversion of ni...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2007.01.016
更新日期:2007-04-01 00:00:00
abstract::Two nemadectin congeners 1 and 2 were isolated from the fermentation broth of a mutant strain (Y-3) of Streptomyces microflavus neau3. Their structures were determined on the basis of extensive spectroscopic analysis and comparison with data from the literature. Compound 2 possessed a 5-membered ring lactone that is u...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2013.08.002
更新日期:2013-10-15 00:00:00
abstract::Introduction of 3-substituted azetidinyl substituents onto the 4,6-diaminopyrimidine scaffold allowed the improvement of PDE4 inhibiting activities. Preliminary in vivo activity in pulmonary inflammation models is reported. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2007.03.047
更新日期:2007-06-01 00:00:00
abstract::A series of thiazole bearing thiazolidin-4-one was discovered via high-throughput screening as non-competitive inhibitors of ADAMTS-5. Compound 31 appeared to give the best ADAMTS-5 inhibition and good selectivity over other metalloproteases. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2013.01.121
更新日期:2013-04-01 00:00:00
abstract::The discovery and optimization of a novel series of prolinol-derived GHSR agonists is described. This series emerged from a 11,520-member solid-phase library targeting the GPCR protein superfamily, and the rapid optimization of low micromolar hits into single-digit nanomolar leads can be attributed to the solid-phase ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2008.07.120
更新日期:2008-09-15 00:00:00
abstract::Herein we report the optimization efforts to ameliorate the potent CYP3A4 time-dependent inhibition (TDI) and low aqueous solubility exhibited by a previously identified lead compound from our NAMPT inhibitor program (1, GNE-617). Metabolite identification studies pinpointed the imidazopyridine moiety present in 1 as ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2014.12.026
更新日期:2015-02-01 00:00:00
abstract::We report the discovery of potent agonists for the human formyl-peptide-like 1 receptor (hFPRL1). These compounds did not act at a closely related receptor denoted human formyl peptide receptor (hFPR) up to 10 microM concentration. Recent studies have indicated that agonizing this receptor may promote resolution of in...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2006.04.068
更新日期:2006-07-15 00:00:00
abstract::A new glucuronylated prodrug of nornitrogen mustard, incorporating the same spacer group as the doxorubicin prodrug HMR 1826, has been prepared. Upon exposure to E. coli beta-glucuronidase, fast hydrolysis occurs but a lower cytotoxicity against LoVo cancer cells is observed compared to the nornitrogen mustard alone. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(00)00353-x
更新日期:2000-08-21 00:00:00
abstract::Syntheses and structure-antiproliferative relationship for oxyphenisatin analogues are described. The cell proliferation data showed that the presence of substituents (especially F, Cl, Me, CF(3), and OMe) in the 6- and 7-position of oxyphenisatin markedly enhanced the potency in the MDA-468 cell line without affectin...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2007.02.060
更新日期:2007-05-15 00:00:00
abstract::Design of non-nucleoside inhibitors of HIV-1 reverse transcriptase is being pursued with computational guidance. Extension of azine-containing inhibitors into the entrance channel between Lys103 and Glu138 has led to the discovery of potent and structurally novel derivatives including dimeric inhibitors in an NNRTI-li...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2011.12.132
更新日期:2012-02-15 00:00:00
abstract::Novel pyrano[4,3-b]pyran-5(4H)-one based small molecules were designed as potential inhibitors of sirtuins (i.e., yeast sir2, a homolog of human SIRT1). Elegant synthesis of these compounds was performed via a multi-step sequence consisting of MCR, Sandmeyer type iodination, Sonogashira type coupling followed by iodoc...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2013.05.014
更新日期:2013-07-15 00:00:00
abstract::A series of new diarylurea and diarylamide derivatives possessing acet(benz)amidophenyl scaffold was synthesized. Their in vitro antiproliferative activity was tested against A375P human melanoma cell line. Compounds 1c,d and 2c,d showed the highest potencies with IC(50) values in sub-micromolar scale. In addition, co...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2012.03.020
更新日期:2012-05-01 00:00:00
abstract::The convergent synthesis of C35-fluorinated analogues of solamin, a mono-THF Annonaceous acetogenin, has been achieved by the Sonogashira coupling of the THF ring fragment and the fluorinated γ-lactone fragment. It was revealed that the number of fluorine atoms on the γ-lactone moiety affects the growth inhibitory act...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2011.08.011
更新日期:2011-10-01 00:00:00
abstract::We previously identified o-carborane bisphenol BE360 (4) as a selective estrogen receptor modulator (SERM), which ameliorated bone loss without inducing estrogenic action in uterus of OVX and ORX mice. Here, we synthesized a fluorinated derivative, B-fluorinated o-carborane bisphenol BE310 (5) by means of S(N)Ar react...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2012.05.068
更新日期:2012-07-15 00:00:00
abstract::In order to obtain rigidity within the sugar moiety of nucleosides, the bicyclic pyrimidine derivatives of N,O-isoxazolidines were designed and synthesized by using 1,3-dipolar cycloaddition of Delta(1)-pyrrolidine-1-oxide and the appropriate vinyl-nucleobases. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2004.11.048
更新日期:2005-02-01 00:00:00
abstract::A catalyst-free synthesis of 6,9-dihydro-[1,3]dioxolo[4,5-g]thieno[3,4-b]quinolin-8(5H)-ones as novel analogues of podophyllotoxins was developed by a three-component reaction of aldehydes, ethyl 2,4-dioxotetrahydrothiophene-3-carboxylate and 3,4-(methylenedioxy)aniline. This methodology not only provides new chemical...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2015.02.047
更新日期:2015-04-01 00:00:00
abstract::Based on the findings that cholest-4-en-3-one, an intestinal metabolite of cholesterol, has an anti-obesity effect on animals, the structure-effect relationship of its 3-oxo derivatives and related compounds were investigated. Cholesten-3-ones, which possesses an enone structure with a carbonyl group at C3, markedly i...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(98)00362-x
更新日期:1998-08-18 00:00:00
abstract::Drug design efforts in the emerging 2-aminothiazole-4-carboxamide class of CHK1 inhibitors have uncovered specific combinations of key substructures within the molecule; resulting in significant improvements in cell-based activity while retaining a greater than one hundred-fold selectivity against CDK2. The X-ray crys...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2013.02.108
更新日期:2013-05-01 00:00:00
abstract::Regio- and/or chemo-selective reductions of taxinine (1a), a taxane diterpenoid readily obtainable from the needles of a Japanese yew (Taxus cuspidata), at the 5-O-cinnamoyl and 4-exo-methylene moieties have been accomplished by the catalytic hydrogenation over Pd/C or Rh/C to obtain 5-O-phenylpropionylated taxinine A...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(99)00620-4
更新日期:1999-12-20 00:00:00