Abstract:
: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 pKa 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 Aβ 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.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Rombouts FJ,Tresadern G,Delgado O,Martínez-Lamenca C,Van Gool M,García-Molina A,Alonso de Diego SA,Oehlrich D,Prokopcova H,Alonso JM,Austin N,Borghys H,Van Brandt S,Surkyn M,De Cleyn M,Vos A,Alexander R,Macdonald G,Modoi
10.1021/acs.jmedchem.5b01101subject
Has Abstractpub_date
2015-10-22 00:00:00pages
8216-35issue
20eissn
0022-2623issn
1520-4804journal_volume
58pub_type
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