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Bioorg Med Chem Lett. 2012 Jan 1;22(1):240-4. doi: 10.1016/j.bmcl.2011.11.024. Epub 2011 Nov 12.

Discovery of pyrrolidine-based β-secretase inhibitors: lead advancement through conformational design for maintenance of ligand binding efficiency.

Author information

1
Department of Medicinal Chemistry, Merck Research Laboratories, Merck & Co., PO Box 4, West Point, PA 19486, USA. shawn_stachel@merck.com

Abstract

We have developed a novel series of pyrrolidine derived BACE-1 inhibitors. The potency of the weak initial lead structure was enhanced using library-based SAR methods. The series was then further advanced by rational design while maintaining a minimal ligand binding efficiency threshold. Ultimately, the co-crystal structure was obtained revealing that these inhibitors interacted with the enzyme in a unique fashion. In all, the potency of the series was enhanced by 4 orders of magnitude from the HTS lead with concomitant increases in physical properties needed for series advancement. The progression of these developments in a systematic fashion is described.

PMID:
22130130
DOI:
10.1016/j.bmcl.2011.11.024
[Indexed for MEDLINE]

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