69066-43-9Relevant academic research and scientific papers
Design, synthesis, and antiviral activity of entry inhibitors that target the CD4-binding site of HIV-1
Curreli, Francesca,Choudhury, Spreeha,Pyatkin, Ilya,Zagorodnikov, Victor P.,Bulay, Anna Khulianova,Altieri, Andrea,Kwon, Young Do,Kwong, Peter D.,Debnath, Asim K.
scheme or table, p. 4764 - 4775 (2012/07/28)
The CD4 binding site on HIV-1 gp120 has been validated as a drug target to prevent HIV-1 entry to cells. Previously, we identified two small molecule inhibitors consisting of a 2,2,6,6-tetramethylpiperidine ring linked by an oxalamide to a p-halide-substituted phenyl group, which target this site, specifically, a cavity termed "Phe43 cavity". Here we use synthetic chemistry, functional assessment, and structure-based analysis to explore variants of each region of these inhibitors for improved antiviral properties. Alterations of the phenyl group and of the oxalamide linker indicated that these regions were close to optimal in the original lead compounds. Design of a series of compounds, where the tetramethylpiperidine ring was replaced with new scaffolds, led to improved antiviral activity. These new scaffolds provide insight into the surface chemistry at the entrance of the cavity and offer additional opportunities by which to optimize further these potential-next- generation therapeutics and microbicides against HIV-1.
Synthesis and biological evaluation of novel oxalamido derivatives as caspase-3 inhibitors
Sengupta, Saumitra,Rao, G. Venkateshwar,Dubey
body text, p. 901 - 905 (2011/09/12)
A new series of 5-fluoro-3-[(4-substituted-phenylaminooxalyl)-amino]-4-oxo- pentanoic acid, 7a-c, 3-[(4-substitutedphenylaminooxalyl)- amino]-4-oxo-5-(2,3, 5,6-tetrafluoro-phenoxy)-pentanoic acid, 7d-h and 5-(2,6-difluoro-phenoxy)-3- [(substituted-phenylaminooxalyl)-amino]-4-oxo-pentanoic acid, 7i-p have been synthesized from N-(substituted-phenyl)- oxalamic acid, 1 and their activities have been evaluated in vitro. Compounds 7b,c and k show low micromolar inhibitory activity against caspase-3.
CD4 mimics targeting the mechanism of HIV entry
Yamada, Yuko,Ochiai, Chihiro,Yoshimura, Kazuhisa,Tanaka, Tomohiro,Ohashi, Nami,Narumi, Tetsuo,Nomura, Wataru,Harada, Shigeyoshi,Matsushita, Shuzo,Tamamura, Hirokazu
experimental part, p. 354 - 358 (2010/04/05)
A structure-activity relationship study was conducted of several CD4 mimicking small molecules which block the interaction between HIV-1 gp120 and CD4. These CD4 mimics induce a conformational change in gp120, exposing its co-receptor-binding site. This induces a highly synergistic interaction in the use in combination with a co-receptor CXCR4 antagonist and reveals a pronounced effect on the dynamic supramolecular mechanism of HIV-1 entry.
Oxamyl dipeptide caspase inhibitors developed for the treatment of stroke
Linton, Steven D.,Aja, Teresa,Allegrini, Peter R.,Deckwerth, Thomas L.,Diaz, Jose-Luis,Hengerer, Bastian,Herrmann, Julia,Jahangiri, Kathy G.,Kallen, Joerg,Karanewsky, Donald S.,Meduna, Steven P.,Nalley, Kip,Robinson, Edward D.,Roggo, Silvio,Rovelli, Giorgio,Sauter, Andre,Sayers, Robert O.,Schmitz, Albert,Smidt, Robert,Ternansky, Robert J.,Tomaselli, Kevin J.,Ullman, Brett R.,Wiessner, Christoph,Wu, Joe C.
, p. 2685 - 2691 (2007/10/03)
Structural modifications were made to a previously described acyl dipeptide caspase inhibitor, leading to the oxamyl dipeptide series. Subsequent SAR studies directed toward the warhead, P2, and P4 regions of this novel peptidomimetic are described herein.
