Document Type

Article

Language

eng

Format of Original

6 p.

Publication Date

5-15-2015

Publisher

Elsevier

Source Publication

Bioorganic & Medicinal Chemistry Letters

Source ISSN

1464-3405

Original Item ID

DOI: 10.1016/j.bmcl.2015.03.073

Abstract

We report a new series of 8-membered benzo-fused lactams that inhibit cellular lipid uptake from HDL particles mediated by Scavenger Receptor, Class B, Type I (SR-BI). The series was identified via a high-throughput screen of the National Institutes of Health Molecular Libraries Small Molecule Repository (NIH MLSMR), measuring the transfer of the fluorescent lipid DiI from HDL particles to CHO cells overexpressing SR-BI. The series is part of a previously reported diversity-oriented synthesis (DOS) library prepared via a build-couple-pair approach. Detailed structure–activity relationship (SAR) studies were performed with a selection of the original library, as well as additional analogs prepared via solution phase synthesis. These studies demonstrate that the orientation of the substituents on the aliphatic ring have a critical effect on activity. Additionally, a lipophilic group is required at the western end of the molecule, and a northern hydroxyl group and a southern sulfonamide substituent also proved to be optimal. Compound 2p was found to possess a superior combination of potency (av IC50 = 0.10 μM) and solubility (79 μM in PBS), and it was designated as probe ML312.

Comments

Published version. Bioorganic & Medicinal Chemistry Letters, Vol. 25, No. 10 (May 15, 2015): 2100-2105. DOI.

Published under Creative Commons License CC BY-NC-ND license.

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