108381-28-8Relevant articles and documents
Diazaphenoxazines and Diazaphenothiazines: Synthesis of the "correct" Isomers Reveals They Are Highly Reactive Radical-Trapping Antioxidants
Haidasz, Evan A.,Pratt, Derek A.
, p. 1854 - 1857 (2017)
The preparation of 2,4-diazaphenothiazines and 2,4-diazaphenoxazines via a copper-catalyzed intramolecular amination is described. Literature approaches which utilize easily accessed (2′-aminophenyl) 4-pyri(mi)dyl sulfides undergo a Smiles rearrangement that gives rise to the 1,3-diaza derivatives instead, confirmed by X-ray crystallography. Inversion of the polarity of the cyclization avoids the rearrangement and affords the desired products. Preliminary kinetic studies suggest that 2,4-diazaphenothiazines and diazaphenoxazines, but not the 1,3-diaza isomers, are remarkably potent radical-trapping antioxidants.
HETEROCYCLIC GLP-1 AGONISTS
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Page/Page column 200-201, (2021/08/20)
Provided are GLP-1 agonists of Formula (I) or (II), including pharmaceutically acceptable salts and solvates thereof, pharmaceutical compositions, and methods of using the same.
Heat shock protein 70 inhibitors. 2. 2,5′-thiodipyrimidines, 5-(phenylthio)pyrimidines, 2-(pyridin-3-ylthio)pyrimidines, and 3-(phenylthio)pyridines as reversible binders to an allosteric site on heat shock protein 70
Taldone, Tony,Kang, Yanlong,Patel, Hardik J.,Patel, Maulik R.,Patel, Pallav D.,Rodina, Anna,Patel, Yogita,Gozman, Alexander,Maharaj, Ronnie,Clement, Cristina C.,Lu, Alvin,Young, Jason C.,Chiosis, Gabriela
, p. 1208 - 1224 (2014/03/21)
The discovery and development of heat shock protein 70 (Hsp70) inhibitors is currently a hot topic in cancer. In the preceding paper in this issue (10.1021/jm401551n), we have described structure-activity relationship studies in the first Hsp70 inhibitor class rationally designed to bind to a novel allosteric pocket located in the N-terminal domain of the protein. These ligands contained an acrylamide to take advantage of an active cysteine embedded in the allosteric pocket and acted as covalent protein modifiers upon binding. Here, we perform chemical modifications around the irreversible inhibitor scaffold to demonstrate that covalent modification is not a requirement for activity within this class of compounds. The study identifies derivative 27c, which mimics the biological effects of the irreversible inhibitors at comparable concentrations. Collectively, the back-to-back manuscripts describe the first pharmacophores that favorably and selectively interact with a never explored pocket in Hsp70 and provide a novel blueprint for a cancer-oriented development of Hsp70-directed ligands.