Development of Multifunctional Pyrimidinylthiourea Derivatives as Potential Anti-Alzheimer Agents
摘要:
Starting from a screening-hit compound, via structure modifications and optimizations, a series of nonfused and nonassembly pyrimidinylthiourea derivatives (2-5) was designed, synthesized, and evaluated as novel multifunctional agents against Alzheimer's disease. Biological activity results demonstrated that compounds 5r and 5t exhibited potent inhibition and excellent selectivity toward acetylcholinesterase (AChE, Sr, IC50 = 0.204 mu M, SI > 196; St, IC50 = 0.067 mu M, SI > 597), specific metal-chelating ability, significant antioxidant effects, modulation of metal-induced A beta aggregation, inhibition of ROS production by copper redox cycle, low cytotoxicity, and moderate neuroprotection to human neuroblastoma SH-SY5Y cells. Moreover, compound Sr displayed appropriate blood brain barrier (BBB) permeability both in vitro and in vivo and could improve memory and cognitive function of, scopolamine-induced amnesia mice. The multifunctional profiles of Sr and its effectivity in AD mice highlight these structurally distinct pyrimidinylthiourea derivatives as prospective prototypes in the research of innovative multifunctional drugs for Alzheimer's disease.
[EN] AZABENZOTHIAZOLE COMPOUNDS, COMPOSITIONS AND METHODS OF USE<br/>[FR] COMPOSÉS D'AZABENZOTHIAZOLE, COMPOSITIONS ET PROCÉDÉS D'UTILISATION
申请人:HOFFMANN LA ROCHE
公开号:WO2012035039A1
公开(公告)日:2012-03-22
Provided are compounds of Formula I, stereoisomers, tautomers, solvates, prodrugs and pharmaceutically acceptable salts thereof, wherein A, X, R1, R2, R4 and R5 are defined herein, a pharmaceutical composition that includes a compound of Formula I and a pharmaceutically acceptable carrier, adjuvant or vehicle, methods of using the compound or composition in therapy, and methods of 5 manufacturing a compound of Formula I.
The present invention relates to compounds which inhibit, regulate and/or modulate tyrosine kinase signal transduction, compositions which contain these compounds, and methods of using them to treat tyrosine kinase-dependent diseases and conditions, such as angiogenesis, cancer, tumor growth, atherosclerosis, age related macular degeneration, diabetic retinopathy, inflammatory diseases, and the like in mammals.
[EN] THIAZOLOPYRIDINE COMPOUNDS, COMPOSITIONS AND THEIR USE AS TYK2 KINASE INHIBITORS<br/>[FR] COMPOSÉS DE THIAZOLOPYRIDINE, COMPOSITIONS ET LEUR UTILISATION COMME INHIBITEURS DE LA KINASE TYK2
申请人:HOFFMANN LA ROCHE
公开号:WO2015091584A1
公开(公告)日:2015-06-25
Provided are thiazolopyridine compounds that are inhibitors of TYK2 kinase, compositions containing these compounds and methods for treating diseases mediated by TYK2 kinase. In particular, provided are compounds of Formula (I), (II) or (III), stereoisomers, tautomers, solvates, prodrugs or pharmaceutically acceptable salts thereof, where X, R0, R1, R2, R3, R4 and R5 are defined herein, pharmaceutical compositions comprising the compound and a pharmaceutically acceptable carrier, adjuvant or vehicle, methods of using the compound or composition in therapy, for example, for treating a disease or condition mediated by TYK2 kinase in a patient.
[EN] IMIDAZOPYRIDINE COMPOUNDS, COMPOSITIONS AND METHODS OF USE<br/>[FR] COMPOSÉ IMIDAZOPYRIDINE, COMPOSITIONS ET PROCÉDÉS D'UTILISATION
申请人:HOFFMANN LA ROCHE
公开号:WO2013041539A1
公开(公告)日:2013-03-28
The invention provides TYK2 inhibitors of Formulas (la-lb), stereoisomers or pharmaceutically acceptable salts thereof, wherein A, X, Ra, R1, R2, R4, R5 and R16 are defined herein, a pharmaceutical composition that includes a compound of Formulas (la-lb) and a pharmaceutically acceptable carrier, adjuvant or vehicle, and methods of using the compound or composition in the therapy of inflammatory diseases.