15583-16-1Relevant academic research and scientific papers
Structural Basis for Achieving GSK-3β Inhibition with High Potency, Selectivity, and Brain Exposure for Positron Emission Tomography Imaging and Drug Discovery
Bernard-Gauthier, Vadim,Mossine, Andrew V.,Knight, Ashley,Patnaik, Debasis,Zhao, Wen-Ning,Cheng, Chialin,Krishnan, Hema S.,Xuan, Lucius L.,Chindavong, Peter S.,Reis, Surya A.,Chen, Jinshan Michael,Shao, Xia,Stauff, Jenelle,Arteaga, Janna,Sherman, Phillip,Salem, Nicolas,Bonsall, David,Amaral, Brenda,Varlow, Cassis,Wells, Lisa,Martarello, Laurent,Patel, Shil,Liang, Steven H.,Kurumbail, Ravi G.,Haggarty, Stephen J.,Scott, Peter J. H.,Vasdev, Neil
supporting information, p. 9600 - 9617 (2019/10/28)
Using structure-guided design, several cell based assays, and microdosed positron emission tomography (PET) imaging, we identified a series of highly potent, selective, and brain-penetrant oxazole-4-carboxamide-based inhibitors of glycogen synthase kinase-3 (GSK-3). An isotopologue of our first-generation lead, [3H]PF-367, demonstrates selective and specific target engagement in vitro, irrespective of the activation state. We discovered substantial ubiquitous GSK-3-specific radioligand binding in Tg2576 Alzheimer's disease (AD), suggesting application for these compounds in AD diagnosis and identified [11C]OCM-44 as our lead GSK-3 radiotracer, with optimized brain uptake by PET imaging in nonhuman primates. GSK-3β-isozyme selectivity was assessed to reveal OCM-51, the most potent (IC50 = 0.030 nM) and selective (>10-fold GSK-3β/GSK-3α) GSK-3β inhibitor known to date. Inhibition of CRMP2T514 and tau phosphorylation, as well as favorable therapeutic window against WNT/β-catenin signaling activation, was observed in cells.
Side-arm effect of a methyl ?±-D-glucopyranoside based lariat ether catalysts in asymmetric syntheses
Rapi, Zsolt,Bak?3, P??ter,Drahos, L??szl?3,Keglevich, Gy??rgy
, p. 63 - 71 (2015/02/19)
Methyl ?±-D-glucopyranoside based monoaza-15-crown-5 type lariat ethers with different heteroatom-containing side arm attached to the nitrogen of the macrocyclic ring have been synthesized. These compounds were used as chiral phase transfer catalysts in a few asymmetric reactions, such as Michael additions, Darzens condensation, and epoxidation of chalcone. The side arms of the macrocycles had a significant impact on the chemical yields and the enantioselectivity. The effect of the lariat ethers with side arms having heteroatom (O, N, and S) was compared with the effect of the analogues having substituents without a heteroatom. The terminal allyl group also generated a significant enantioselectivity (79% enantiomeric excess) in one of the Michael additions. The application of crown ethers with substituents (CH2)3OH or (CH2)3OCH3 leads to the best enantioselectivities 85% and 99%, respectively.
Synthesis, SAR and selectivity of 2-acyl- and 2-cyano-1-hetarylalkyl- guanidines at the four histamine receptor subtypes: A bioisosteric approach
Geyer, Roland,Igel, Patrick,Kaske, Melanie,Elz, Sigurd,Buschauer, Armin
, p. 72 - 81 (2014/01/06)
In the search for potential bioisosteres of the 4-imidazolyl ring in acylguanidines (e.g. UR-AK24), known to possess affinity to several histamine receptor subtypes (HxR, x = 1-4), and cyanoguanidine-type H 4R agonists (e.g. UR-PI376
2,6-Diaminopyridine compounds for treating diseases associated with amyloid proteins or for treating ocular diseases
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, (2011/05/04)
The present invention relates to 2,6-diaminopyridine compounds that can be employed in the treatment of a group of disorders and abnormalities associated with amyloid protein and of diseases or conditions associated with amyloid-like proteins. The compoun
2,6-Diaminopyridine Compounds Suitable For Treating Diseases Associated With Amyloid Or Amyloid-Like Proteins Or For Treating Or Preventing Ocular Diseases Or Conditions Associated With A Pathological Abnormality/Change In The Tissue Of The Visual System
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, (2011/05/03)
The present invention relates to 2,6-diaminopyridine compounds that can be employed in the treatment of a group of disorders and abnormalities associated with amyloid protein and of diseases or conditions associated with amyloid-like proteins. The compounds of the present invention can also be used in the treatment of ocular diseases associated with pathological abnormalities/changes in the tissues of the visual system.
2,6-DIAMINOPYRIDINE COMPOUNDS SUITABLE FOR TREATING DISEASES ASSOCIATED WITH AMYLOID OR AMYLOID-LIKE PROTEINS OR FOR TREATING OR PREVENTING OCULAR DISEASES OR CONDITIONS ASSOCIATED WITH A PATHOLOGICAL ABNORMALITY/CHANGE IN THE TISSUE OF THE VISUAL SYSTEM
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, (2011/05/05)
The present invention relates to 2.6-diaminopyridine compounds that can be employed in the treatment of a group of disorders and abnormalities associated with amyloid protein and of diseases or conditions associated with amyloid-like proteins. The compoun
Syntheses and biological activities of structurally stiff rhodacyanines as novel antimalarial candiadates
Takasu, Kiyosei,Morisaki, Daiki,Kaiser, Marcel,Brun, Reto,Ihara, Masataka
, p. 161 - 166 (2007/10/03)
New classes of rhodacyanine as structurally stiff derivatives were designed and synthesized. The synthetic compounds were evaluated the antimalarial activity and cytotoxicity in vitro.
INDANE DERIVATES AS MUSCARINIC RECEPTOR AGONISTS
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Page 28, (2010/02/10)
The present invention relates to compounds of Formula I: I which are agonists of the M-1 muscarinic receptor.
N-phenpropylcuclopentyl-substituted glutaramide derivatives as inhibitors of neutral endopeptidase
-
, (2008/06/13)
The invention relates to compounds of formula (I) for treating for example sexual dysfunction, wherein R1 is optionally substituted C1-6alkyl, optionally substituted carbocyclyl, optionally substituted heterocyclyl, hydrogen, C1-6alkoxy, —NR2 R3 or —NR4SO2R5; X is the linkage —(CH2)n— or —(CH2)q—O— (wherein Y is attached to the oxygen); wherein one or more hydrogen atoms in linkage X may be replaced independently by C1-4alkoxy; hydroxy; hydroxy(C1-3alkyl); C3-7cycloalkyl; carbocyclyl; heterocyclyl; or by C1-4alkyl optionally substituted by one or more fluoro or phenyl groups; n is 3, 4, 5, 6 or 7; and q is 2, 3, 4, 5 or 6; and Y is phenyl or pyridyl, each of which may be substituted; or two R8 groups on adjacent carbon atoms together with the interconnecting carbon atoms may form a fused optionally substituted 5- or 6-membered carbocyclic or heterocyclyic ring.
Structural Factors Affecting the Basicity of ω-Pyridylalkanols, ω-Pyridylalkanamides and ω-Pyridylalkylamines
Mayer, Joachim M.,Testa, Bernard
, p. 1868 - 1884 (2007/10/02)
The present paper describes the preparation by conventional methods (when not available commercially) and the pKa-determination of the α-, β- and γ-isomers of pyridylethanamide, 3-pyridylpropanamide, 4-pyridylbutanamide, 5-pyridylpentanamide, pyridylmethanol, 2-pyridylethanol, 3-pyridylpropanol, 4-pyridylbutanol, 5-pyridylpentanol, pyridylmethylamine, 2-pyridylethylamine, 3-pyridylpropylamine, 4-pyridylbutylamine, and 5-pyridylpentylamine.While a field effect accounts for many variations in pKa as a function of chain length, marked inductive effects are operative in some methyl and ethyl homologs.The pKa-decreasing influence of an intramolecular H-bond is also apparent in some lower homologs belonging to the α-series.
