882188-88-7Relevant articles and documents
GAMMA-DIKETONES AS WNT/BETA -CATENIN SIGNALING PATHWAY ACTIVATORS
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Paragraph 1755; 1756; 1757; 1760, (2014/09/03)
The present disclosure provides γ-diketones or analogs thereof, that activate Wnt/β-catenin signaling and thus treat or prevent diseases related to signal transduction, such as osteoporosis and osteoarthropathy; osteogenesis imperfecta, bone defects, bone fractures, periodontal disease, otosclerosis, wound healing, craniofacial defects, oncolytic bone disease, traumatic brain injuries or spine injuries, brain atrophy/neurological disorders related to the differentiation and development of the central nervous system, including Parkinson's disease, strokes, ischemic cerebral disease, epilepsy, Alzheimer's disease, depression, bipolar disorder, schizophrenia; otic disorders like cochlear hair cell loss; eye diseases such as age related macular degeneration, diabetic macular edema or retinitis pigmentosa and diseases related to differentiation and growth of stem cell, such as hair loss, hematopoiesis related diseases and tissue regeneration related diseases.
New practical access to 2-azatryptophans and dehydro derivatives via the Wittig-Horner reaction
Crestey, Fran?ois,Collot, Valérie,Stiebing, Silvia,Lohier, Jean-Fran?ois,Santos, Jana Sopkova-de Oliveira,Rault, Sylvain
, p. 2457 - 2460 (2007/10/03)
The Wittig-Horner reaction of protected 3-formylindazoles 1 with (±)-N-(benzyloxycarbonyl)-α-phosphonoglycine trimethyl ester 2 has been developed as a new practical synthesis of dehydro 2-azatryptophans and amino acid derivatives. The preparation of 5-br
Identification of a buried pocket for potent and selective inhibition of Chk1: Prediction and verification
Foloppe, Nicolas,Fisher, Lisa M.,Francis, Geraint,Howes, Rob,Kierstan, Peter,Potter, Andrew
, p. 1792 - 1804 (2007/10/03)
Inhibition of the Chk1 kinase by small molecules binding to its active site is a strategy of great therapeutic interest for oncology. We report how computational modelling predicted the binding mode of ligands of special interest to the Chk1 ATP site, for representatives of an indazole series and debromohymenialdisine. These binding modes were subsequently confirmed by X-ray crystallography. The binding mode of a potent indazole derivative involves non-conventional C-H...O and N-H...π-aromatic interactions with the protein. These interactions are formed in a buried pocket at the periphery of the ATP-binding site, the importance of which has previously been overlooked for ligand design against Chk1. It is demonstrated that filling this pocket can confer ligands with dramatically enhanced affinity for Chk1. Structural arguments in conjunction with assay data explain why targeting this pocket is also advantageous for selective binding to Chk1. Structural overlays of known inhibitors complexed with Chk1 show that only the indazole series utilizes the pocket of interest. Therefore, the analysis presented here should prove helpful in guiding future structure-based ligand design efforts against Chk1.