Docking and Quantitative Structure Activity Relationship studies of Acyl Guanidines as beta-Secretase (BACE1) Inhibitor
- Authors
- Hwang, Yu Jin; Im, Chaeuk
- Issue Date
- 20-Jul-2014
- Publisher
- KOREAN CHEMICAL SOC
- Keywords
- BACE1; Docking; CoMFA; CoMSIA
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.35, no.7, pp 2065 - 2071
- Pages
- 7
- Journal Title
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY
- Volume
- 35
- Number
- 7
- Start Page
- 2065
- End Page
- 2071
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/12036
- DOI
- 10.5012/bkcs.2014.35.7.2065
- ISSN
- 0253-2964
1229-5949
- Abstract
- beta-Secretase (beta-amyloid converting enzyme 1 [BACE1]) is involved in the first and rate-limiting step of beta-amyloid (A beta) peptides production, which leads to the pathogenesis of Alzheimer's disease(AD). Therefore, inhibition of BACE1 activity has become an efficient approach for the treatment of AD. Ligand-based and docking-based 3D-quantitative structure-activity relationship (3D-QSAR) studies of acyl guanidine analogues were performed with comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA) to obtain insights for designing novel potent BACE1 inhibitors. We obtained highly reliable and predictive CoMSIA models with a cross-validated q(2) value of 0.725 and a predictive coefficient r(pred)(2) value of 0.956. CoMSIA contour maps showed the structural requirements for potent activity. 3D-QSAR analysis suggested that an acyl guanidine and an amide group in the R-6 substituent would be important moieties for potent activity. Moreover, the introduction of small hydrophobic groups in the phenyl ring and hydrogen bond donor groups in 3,5-dichlorophenyl ring could increase biological activity.
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