Abstract:
:The synthesis and biological activity of novel glycoprotein IIb-IlIa anatagonists containing 3-azaspiro[5.5]undec-9-yl nucleus are described. The potent activity of these compounds as platelet aggregation inhibitors demonstrates the utility of the monoazaspirocyclic structure as central template for nonpeptide RGD mimics.
journal_name
Bioorg Med Chem Lettjournal_title
Bioorganic & medicinal chemistry lettersauthors
Pandey A,Seroogy J,Volkots D,Smyth MS,Rose J,Mehrotra MM,Heath J,Ruhter G,Schotten T,Scarborough RMdoi
10.1016/s0960-894x(01)00216-5subject
Has Abstractpub_date
2001-05-21 00:00:00pages
1293-6issue
10eissn
0960-894Xissn
1464-3405pii
S0960894X01002165journal_volume
11pub_type
杂志文章abstract::Tuberculosis remains as a major public health risk which causes the highest mortality rate globally and an improved regimen is required to treat the drug-resistant strains. Pyrazinamide is a first-line antitubercular drug used in combination therapy with other anti-TB drugs. Herein, we describe the modification of pyr...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2019.126846
更新日期:2020-01-15 00:00:00
abstract::A phytochemical study on the roots of Pongamia pinnata afforded five new isoflavone and isoflavanone derivatives (1-5), including two previously undescribed phenylisoflavones possessing an 1,2-oxetane ring, along with 21 known compounds (6-26) among which compound 18 is the first time to be isolated from nature. The s...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2018.02.026
更新日期:2018-04-01 00:00:00
abstract::Synthesis of novel 1,2,3-triazole-linked beta-lactam-bile acid conjugates 17-24 using 1,3-dipolar cycloaddition reaction of azido beta-lactam and terminal alkyne of bile acids in the presence of Cu(I) catalyst (click chemistry) have been realized. These molecules were evaluated in vitro for their antifungal and antiba...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2008.01.102
更新日期:2008-03-15 00:00:00
abstract::Single enantiomer (SS) and (RR) 2-[(phenoxy)(phenyl)methyl]morpholine derivatives 5, 8-23 are inhibitors of monoamine reuptake. Target compounds were prepared using an enantioselective synthesis employing a highly specific enzyme-catalysed resolution of racemic n-butyl 4-benzylmorpholine-2-carboxylate (26) as the key ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2008.03.050
更新日期:2008-04-15 00:00:00
abstract::Opuntia ficus-indica L. is known for its beneficial effects on human health, but still little is known on cladodes as a potent source of antioxidants. Here, a direct, economic and safe method was set up to obtain water extracts from Opuntia ficus-indica cladodes rich in antioxidant compounds. When human keratinocytes ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2017.10.043
更新日期:2017-12-15 00:00:00
abstract::The syntheses and anti-tuberculosis activity of quinolone-cephalosporin conjugates (1 and 2) are described. Both showed broad-spectrum antibacterial activity and significant anti-TB activity. The carbamate-linked quinolone-cephem 2 showed better antimycobacterial activity, including anti-TB activity, than the direct a...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2006.08.045
更新日期:2006-11-01 00:00:00
abstract::Vitamin K is the collective term for compounds that share a 2-methyl-1,4-naphthoquinone ring, but differ in the side-chain at the 3-position. We synthesized novel 2-methyl-1,4-naphthoquinone derivatives with different side chain length at the 3-position. Derivatives with C-14 and C-16 tails showed the highest in vitro...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2016.11.073
更新日期:2017-01-15 00:00:00
abstract::In a previous study, we found that the 3,4-dihydroquinazoline derivative, 4-(Benzylcarbamoylmethyl)-2-(biphenyl-4-ylamino)-3-(5-tert-butyloxycarbamoyl-1-pentyl)-3,4-dihydroquinazoline (KYS05047), was a selective T-type Ca(2+) channel blocker with anti-proliferative effects against various cancer cells. However, the me...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2012.09.076
更新日期:2012-12-01 00:00:00
abstract::A series of pyrazoline derivatives were prepared for evaluating their acyl-CoA:cholesterol acyltransferase activities. 3-(3,5-Di-tert-butyl-4-hydroxyphenyl)-5-(multi-substituted 4-hydroxyphenyl)-2-pyrazolines 4a-i were shown in vitro inhibitory activity on hACAT-1 and -2. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2004.03.079
更新日期:2004-06-07 00:00:00
abstract::STAT3 is a promising molecular target for the design of new anticancer drugs. In this paper, we report the design and synthesis of a conformationally constrained macrocyclic peptidomimetic 2 via click chemistry. Compound 2 was determined to bind to STAT3 with a K(i) value of 7.3 microM in a competitive fluorescence-po...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2007.04.096
更新日期:2007-07-15 00:00:00
abstract::A series of alpha,beta-unsaturated-gamma-lactone-free nitrogen-containing heterocyclic analogues of solamin, a natural mono-THF acetogenin, have been synthesized and their cytotoxicity was investigated against 39 tumor cell lines. One of them, 1-methylpyrazol-5-yl derivative, showed selective increase of cytotoxicity ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2008.01.057
更新日期:2008-03-01 00:00:00
abstract::N-Aryl derivatives of edaravone were identified as potentially effective small molecule inhibitors of tau and beta-amyloid aggregation in the context of developing disease-modifying therapeutics for Alzheimer's disease (AD). Palladium-catalyzed hydrazine monoarylation protocols were then employed as an expedient means...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2015.11.022
更新日期:2016-01-01 00:00:00
abstract::In an effort to find potential anxiolytic and/or antipsychotic agents with selective 5-HT(2C) affinity a series of new pyrimidine derivatives was prepared and the binding affinities for 5-HT(2A) and 5-HT(2C) receptors were determined. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(02)00660-1
更新日期:2002-11-04 00:00:00
abstract::A significant increase in plasma glutamate-oxaloacetate transaminase and glutamate-pyruvate transaminase was observed 6 h after intraperitoneal administration of D-galactosamine (D-Galn). Three hours after administration of D-Galn, the vitamin C concentration in the liver decreased significantly compared to that in a ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2006.02.057
更新日期:2006-06-01 00:00:00
abstract::The synthesis, SAR, pharmacokinetic profile, and modeling studies of both monocyclic and fused pyrazoles containing substituted N-arylpiperidinyl P4 moieties that are potent and selective factor Xa inhibitors will be discussed. Fused pyrazole analog 16a, with a 2'-methylsulfonylphenyl piperidine P4 group, was shown to...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2006.11.071
更新日期:2007-03-01 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::The diacylglycerol acyltransferase enzyme, DGAT1, presents itself as a potential target for obesity as this enzyme is dedicated to the final committed step in triglyceride biosynthesis. Biphenyl ureas, exemplified by compound 4, have been reported to be potent hDGAT1 inhibitors. We have synthesized and evaluated 2-pyr...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2011.07.109
更新日期:2011-10-01 00:00:00
abstract::A rational fluorine scan based on co-crystal structures was explored to increase the potency of a series of selective BTK inhibitors. While fluorine substitution on a saturated bicyclic ring system yields no apparent benefit, the same operation on an unsaturated bicyclic ring can increase HWB activity by up to 40-fold...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2014.11.030
更新日期:2015-01-15 00:00:00
abstract::A series of genistein derivatives, prepared by alkylation and difluoromethylation, were tested for their inhibitory effects on the hydrogen peroxide induced impairment in human umbilical vein endothelial (HUVE-12) cells in vitro. The HUVE-12 cells were pretreated with either the vehicle solvent (DMSO), genistein, or d...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2007.11.097
更新日期:2008-01-15 00:00:00
abstract::In the search for a new class of histone deacetylase inhibitors, we prepared a series of simple benzofused hydroxamic acids to find an anchoring fragment of minimal molecular weight. These initial hits, all belonging to the benzothiophene class, showed very good ligand efficiencies. Following these findings, a classic...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2013.05.053
更新日期:2013-07-15 00:00:00
abstract::We report, for the first time, that certain N-acetylthiourea derivatives serve as highly potent and isozyme selective activators for the recombinant form of human histone deacetylase-8 in the assay system containing Fluor-de-Lys as a fluorescent substrate. The experimental data reveals that such activating feature is ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2011.07.080
更新日期:2011-10-01 00:00:00
abstract::Leukotrienes (LT's) are known to play a physiological role in inflammatory immune response. Leukotriene A(4) hydrolase (LTA(4)H) is a cystolic enzyme that stereospecifically catalyzes the transformation of LTA(4) to LTB(4). LTB(4) is a known pro-inflammatory mediator. This paper describes the identification and synthe...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2012.11.074
更新日期:2013-02-01 00:00:00
abstract::A series of oligo-peptide based catalysts were prepared using Fmoc solid-phase peptide synthesis. It was found that peptides with N-terminal proline residues catalyzed an aldol reaction yielding enantiomeric enriched product. Peptide H-Pro-Glu-Leu-Phe-OH catalyzed the reaction with good activity and moderate enantiose...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(03)00498-0
更新日期:2003-08-04 00:00:00
abstract::Starting from a weak omeprazole screening hit, replacement of the pyridine with a 1,3-benzodioxole moiety, modification of the thioether linkage, and substitution of the benzimidazole pharmacophore led to the discovery of nanomolar BRS-3 agonists. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2008.09.033
更新日期:2008-10-15 00:00:00
abstract::The synthesis and structure-activity relationships (SAR) of Chk1 inhibitors based on a 5,10-dihydro-dibenzo[b,e][1,4]diazepin-11-one core are described. Specifically, an exploration of the 7 and 8 positions on this previously disclosed core afforded compounds with improved enzymatic and cellular potency. ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2008.02.080
更新日期:2008-04-01 00:00:00
abstract::Starting from the known FXR agonist GW 4064 1a, a series of alternately 3,5-substituted isoxazoles was prepared. Several of these analogs were potent full FXR agonists. A subset of this series, with a tether between the isoxazole ring and the 3-position aryl substituent, were equipotent FXR agonists to GW 4064 1a, wit...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2009.04.047
更新日期:2009-06-01 00:00:00
abstract::Six 3'R,4'R-di-O-(S)-camphanoyl-2',2'-dimethyldihydropyrano[2,3-f]chromone (DCP) and two 3'R,4'R-di-O-(S)-camphanoyl-(+)-cis-khellactone (DCK) derivatives were designed, synthesized, and evaluated for inhibition of HIV-1(NL4-3) replication in TZM-bl cells. 2-Ethyl-2'-monomethyl-1'-oxa- and -1'-thia-DCP (5a, 6a), as we...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2011.07.105
更新日期:2011-10-01 00:00:00
abstract::Three novel inosine-based dinuclear platinum complexes have been synthesized via a solid-phase strategy. In these compounds, the metal is linked both to the N-7 of the purine nucleus and to the terminal amine group of a hexylamine side chain installed on N-1. Cis- or trans- diamine as well as ethylenediamine ligands a...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/j.bmcl.2011.07.104
更新日期:2011-10-01 00:00:00
abstract::The screening for new inhibitors of steroid sulfatase requires an efficient test system. To overcome the shortcomings of the available discontinuous fluorimetric assay, several coumarin-type compounds were investigated as potential new substrates. 3,4-Benzocoumarin 7-O-sulfate was found to have appropriate substrate p...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(00)00144-x
更新日期:2000-05-01 00:00:00
abstract::Several chemically modified analogues to a tightly binding ligand for the second PDZ domain of MAGI-3 were synthesized and evaluated for their ability to compete with native peptide ligands. N-methyl scanning of the ligand backbone amides revealed the energetically important hydrogen bonds between the ligand backbone ...
journal_title:Bioorganic & medicinal chemistry letters
pub_type: 杂志文章
doi:10.1016/s0960-894x(02)00345-1
更新日期:2002-09-02 00:00:00