18735-74-5Relevant articles and documents
A mild high yielding synthesis of oxazole-4-carboxylate derivatives
Ferreira, Paula M.T.,Castanheira, Elisabete M.S.,Monteiro, Luís S.,Pereira, Goreti,Vilaa, Helena
experimental part, p. 8672 - 8680 (2011/01/04)
Several 2,5-disubstituted oxazole-4-carboxylates were prepared in high yields from the methyl esters of N-acyl-β-halodehydroaminobutyric acid derivatives by treatment with a 2% solution of DBU in acetonitrile. The scope of this reaction was investigated a
Structure-activity relationship of new anti-tuberculosis agents derived from oxazoline and oxazole benzyl esters
Moraski, Garrett C.,Chang, Mayland,Villegas-Estrada, Adriel,Franzblau, Scott G.,M?llmann, Ute,Miller, Marvin J.
experimental part, p. 1703 - 1716 (2010/06/19)
During the syntheses and studies of natural iron chelators (mycobactins), we serendipitously discovered that a simple, small molecule, oxazoline-containing intermediate 3 displayed surprising anti-tuberculosis activity (MIC of 7.7?μM, average). Herein we
Towards Gram-negative antivirulence drugs: New inhibitors of HldE kinase
Desroy, Nicolas,Moreau, Francois,Briet, Sophia,Fralliec, Geraldine Le,Floquet, Stephanie,Durant, Lionel,Vongsouthi, Vanida,Gerusz, Vincent,Denis, Alexis,Escaich, Sonia
experimental part, p. 1276 - 1289 (2009/07/11)
Gram-negative bacteria lacking heptoses in their lipopolysaccharide (LPS) display attenuated virulence and increased sensitivity to human serum and to some antibiotics. Thus inhibition of bacterial heptose synthesis represents an attractive target for the development of new antibacterial agents. HldE is a bifunctional enzyme involved in the synthesis of bacterial heptoses. Development of a biochemical assay suitable for high-throughput screening allowed the discovery of inhibitors 1 and 2 of HldE kinase. Study of the structure-activity relationship of this series of inhibitors led to highly potent compounds.
Syntheses and biological activity of amamistatin B and analogs
Fennell, Kelley A.,Moellmann, Ute,Miller, Marvin J.
, p. 1018 - 1024 (2008/09/18)
(Chemical Equation Presented) Amamistatins A and B, natural products isolated from a strain of Nocardia, showed growth inhibition against three human tumor cell lines (IC50 0.24-0.56 μM). Structurally related mycobactins affect the growth of bo
Syntheses of amamistatin fragments and determination of their HDAC and antitumor activity
Fennell, Kelley A.,Miller, Marvin J.
, p. 1683 - 1685 (2008/02/02)
Amamistatins A and B are natural products found to have anti-proliferative effects against MCF-7, A549, and MKN45 human tumor cell lines (IC50 0.24-0.56 μM). It was proposed that their activity was due to histone deacetylase (HDAC) inhibition m
Design, synthesis, and evaluation of oxazole transthyretin amyloidogenesis inhibitors
Razavi, Hossein,Powers, Evan T.,Purkey, Hans E.,Adamski-Werner, Sara L.,Chiang, Kyle P.,Dendle, Maria T. A.,Kelly, Jeffery W.
, p. 1075 - 1078 (2007/10/03)
Ten oxazoles bearing a C(4) carboxyl group were synthesized and evaluated as transthyretin (TTR) amyloid fibril inhibitors. Substituting aryls at the C(2) position of the oxazole ring reveals that a 3,5-dichlorophenyl substituent significantly reduced amy
Solid-phase synthesis of oxazolones and other heterocycles via Wang resin-bound diazocarbonyls
Yamashita, Makoto,Lee, Sang-Hyeup,Koch, Guido,Zimmermann, Juerg,Clapham, Bruce,Janda, Kim D.
, p. 5495 - 5498 (2007/10/03)
The preparation of Wang resin bound α-diazo-β-ketoesters is described. These highly useful intermediates were used for the synthesis of a series of heterocycle libraries, which were obtained from the resin using TFA cleavage. In addition, a novel route for the synthesis of oxazolones using an N-H insertion strategy is disclosed.
Materials and methods for the treatment of diabetes, hyperlipidemia, hypercholesterolemia, and atherosclerosis
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Page 3; sheet 25, (2010/02/03)
The subject invention provides pharmaceutical compounds useful in the treatment of Type II diabetes. These compounds are advantageous because they are readily metabolized by the metabolic drug detoxification systems. Particularly, thiazolidinedione analogs that have been designed to include esters within the structure of the compounds are provided. This invention is also drawn to methods of treating disorders, such as diabetes, comprising the administration of therapeutically effective compositions comprising compounds that have been designed to be metabolized by serum or intracellular hydrolases and esterases. Pharmaceutical compositions of the ester-containing thiazolidinedione analogs are also taught.
Combinatorial synthesis and biological evaluation of library of small-molecule Ser/Thr-protein phosphatase inhibitors
Wipf, Peter,Cunningham, April,Rice, Robert L.,Lazo, John S.
, p. 165 - 177 (2007/10/03)
In eukaryotes, phosphorylation of serine, threonine, and tyrosine residues on proteins is a fundamental posttranslational regulatory process for such functions as signal transduction, gene transcription, RNA splicing, cellular adhesion, apoptosis, and cell cycle control. Based on functional groups present in natural product serine/threonine protein phosphatase (PSTPase) inhibitors, we have designed pharmacophore model 1 and demonstrated the feasibility of a combinatorial chemistry approach for the preparation of functional analogues of 1. Preliminary biological testing of 18 structural variants of 1 has identified two compounds with growth inhibitory activity against cultured human breast cancer cells. In vitro inhibition of the PSTPase PP2A was demonstrated with compound Id. Using flow cytometry we observed that compound If caused prominent inhibition in the G1 phase of the cell cycle. Thus, the combinatorial modifications of the minimal pharmacophore 1 can generate biologically interesting antiproliferative agents.