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Discovery of highly potent and selective inhibitors of neuronal nitric oxide synthase by fragment hopping.

Abstract：

:Selective inhibition of neuronal nitric oxide synthase (nNOS) has been shown to prevent brain injury and is important for the treatment of various neurodegenerative disorders. This study shows that not only greater inhibitory potency and isozyme selectivity but more druglike properties can be achieved by fragment hopping. On the basis of the structure of lead molecule 6, fragment hopping effectively extracted the minimal pharmacophoric elements in the active site of nNOS for ligand hydrophobic and steric interactions and generated appropriate lipophilic fragments for lead optimization. More potent and selective inhibitors with better druglike properties were obtained within the design of 20 derivatives (compounds 7-26). Our structure-based inhibitor design for nNOS and SAR analysis reveal the robustness and efficiency of fragment hopping in lead discovery and structural optimization, which implicates a broad application of this approach to many other therapeutic targets for which known druglike small-molecule modulators are still limited.

journal_name

J Med Chem

journal_title

Journal of medicinal chemistry

authors

Ji H,Li H,Martásek P,Roman LJ,Poulos TL,Silverman RB

doi

10.1021/jm801220a

subject

Has Abstract

pub_date

2009-02-12 00:00:00

pages

779-97

issue

3

eissn

0022-2623

issn

1520-4804

pii

10.1021/jm801220a

journal_volume

52

pub_type

杂志文章

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