[EN] 5,6-DIHYDRO-2H-[1,4]OXAZIN-3-YL-AMINE DERIVATIVES USEFUL AS INHIBITORS OF BETA-SECRETASE (BACE)<br/>[FR] DÉRIVÉS DE 5,6-DIHYDRO-2H-[1,4]OXAZIN-3-YLAMINE UTILES COMME INHIBITEURS DE BÊTA-SÉCRÉTASE (BACE)
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2011154431A1
公开(公告)日:2011-12-15
The present invention relates to novel 5,6-dihydro-2H-[1,4]oxazin-3-ylamine derivatives as inhibitors of beta-secretase, also known as beta-site amyloid cleaving enzyme, BACE, BACE1, Asp2, or memapsin2. The invention is also directed to pharmaceutical compositions comprising such compounds, to processes for preparing such compounds and compositions, and to the use of such compounds and compositions for the prevention and treatment of disorders in which beta-secretase is involved, such as Alzheimer's disease (AD), mild cognitive impairment, senility, dementia, dementia with Lewy bodies, Down's syndrome, dementia associated with stroke, dementia associated with Parkinson's disease and dementia associated with beta- amyloid.
The present invention relates to novel 5-(3-aminophenyl)-5-alkyl-5,6-dihydro-2H-[1,4]oxazin-3-amine derivatives as inhibitors of beta-secretase, also known as beta-site amyloid cleaving enzyme, BACE, BACE1, Asp2, or memapsin2. The invention is also directed to pharmaceutical compositions comprising such compounds, to processes for preparing such compounds and compositions, and to the use of such compounds and compositions for the prevention and treatment of disorders in which beta-secretase is involved, such as Alzheimer's disease (AD), mild cognitive impairment, senility, dementia, dementia with Lewy bodies, cerebral amyloid angiopathy, multi-infarct dementia, Down's syndrome, dementia associated with stroke, dementia associated with Parkinson's disease and dementia associated with beta-amyloid.
Optimization of 1,4-Oxazine β-Secretase 1 (BACE1) Inhibitors Toward a Clinical Candidate
作者:Harrie J. M. Gijsen、Sergio A. Alonso de Diego、Michel De Cleyn、Aránzazu García-Molina、Gregor J. Macdonald、Carolina Martínez-Lamenca、Daniel Oehlrich、Hana Prokopcova、Frederik J. R. Rombouts、Michel Surkyn、Andrés A. Trabanco、Sven Van Brandt、Dries Van den Bossche、Michiel Van Gool、Nigel Austin、Herman Borghys、Deborah Dhuyvetter、Diederik Moechars
DOI:10.1021/acs.jmedchem.8b00304
日期:2018.6.28
the introduction of electron withdrawing groups to 1,4-oxazineBACE1inhibitors reduced the pKa of the amidine group, resulting in compound 2 that showed excellent in vivo efficacy, lowering Aβ levels in brain and CSF. However, a suboptimal cardiovascular safety margin, based on QTc prolongation, prevented further progression. Further optimization resulted in the replacement of the 2-fluoro substituent
在先前的研究中,将吸电子基团引入1,4-恶嗪BACE1抑制剂可降低am基团的p K a,从而使化合物2表现出出色的体内功效,降低大脑和CSF中的Aβ水平。但是,基于QTc延长的次优心血管安全裕度阻止了进一步的进展。进一步的优化导致CF 3-基团取代了2-氟取代基,从而降低了hERG抑制作用。这导致化合物3的心血管安全性得到改善,并且在GLP毒性研究中足够安全,可以进入临床试验。
1,4-Oxazine β-Secretase 1 (BACE1) Inhibitors: From Hit Generation to Orally Bioavailable Brain Penetrant Leads
作者:Frederik J. R. Rombouts、Gary Tresadern、Oscar Delgado、Carolina Martínez-Lamenca、Michiel Van Gool、Aránzazu García-Molina、Sergio A. Alonso de Diego、Daniel Oehlrich、Hana Prokopcova、José Manuel Alonso、Nigel Austin、Herman Borghys、Sven Van Brandt、Michel Surkyn、Michel De Cleyn、Ann Vos、Richard Alexander、Gregor Macdonald、Dieder Moechars、Harrie Gijsen、Andrés A. Trabanco
DOI:10.1021/acs.jmedchem.5b01101
日期:2015.10.22
1,4-Oxazines are presented, which show good in vitro inhibition in enzymatic and cellular BACE1 assays. We describe lead optimization focused on reducing the amidine pK(a) while optimizing interactions in the BACE1 active site. Our strategy permitted modulation of properties such as permeation and especially P-glycoprotein efflux. This led to compounds which were orally bioavailable, centrally active, and which demonstrated robust lowering of brain and CSF A beta levels, respectively, in mouse and dog models. The amyloid lowering potential of these molecules makes them valuable leads in the search for new BACE1 inhibitors for the treatment of Alzheimer's disease.