4r5n
From Proteopedia
8-Tetrahydropyran-2-yl chromans: highly selective beta-site amyloid precursor protein cleaving enzyme 1 (BACE1) inhibitors
Structural highlights
Function[BACE1_HUMAN] Responsible for the proteolytic processing of the amyloid precursor protein (APP). Cleaves at the N-terminus of the A-beta peptide sequence, between residues 671 and 672 of APP, leads to the generation and extracellular release of beta-cleaved soluble APP, and a corresponding cell-associated C-terminal fragment which is later released by gamma-secretase.[1] [2] Publication Abstract from PubMedA series of 2,3,4,4a,10,10a-hexahydropyrano[3,2-b]chromene analogs was developed that demonstrated high selectivity (>2000-fold) for BACE1 vs Cathepsin D (CatD). Three different Asp-binding moieties were examined: spirocyclic acyl guanidines, aminooxazolines, and aminothiazolines in order to modulate potency, selectivity, efflux, and permeability. Guided by structure based design, changes to P2' and P3 moieties were explored. A conformationally restricted P2' methyl group provided inhibitors with excellent cell potency (37-137 nM) and selectivity (435 to >2000-fold) for BACE1 vs CatD. These efforts lead to compound 59, which demonstrated a 69% reduction in rat CSF Abeta1-40 at 60 mg/kg (PO). 8-Tetrahydropyran-2-yl Chromans: Highly Selective Beta-Site Amyloid Precursor Protein Cleaving Enzyme 1 (BACE1) Inhibitors.,Thomas AA, Hunt KW, Newhouse B, Watts RJ, Liu X, Vigers G, Smith D, Rhodes SP, Brown KD, Otten JN, Burkard M, Cox AA, Geck Do MK, Dutcher D, Rana S, DeLisle RK, Regal K, Wright AD, Groneberg R, Liao J, Scearce-Levie K, Siu M, Purkey HE, Lyssikatos JP J Med Chem. 2014 Nov 26. PMID:25411915[3] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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