Benzo-fused lactams from a diversity-oriented synthesis (DOS) library as inhibitors of scavenger receptor BI (SR-BI)-mediated lipid uptake
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Krieger_Benzo-fused.pdf
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3.92 MB
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Author(s)
Dockendorff, Chris
Faloon, Patrick W.
Pu, Jun
Johnston, Stephen
Bennion, Melissa
Dandapani, Sivaraman
Perez, José R.
Munoz, Benito
Palmer, Michelle A.
Schreiber, Stuart L.
Date Issued
April 2015
Journal
Bioorganic & Medicinal Chemistry Letters
Publisher
Elsevier
Citation
Dockendorff, Chris et al. “Benzo-Fused Lactams from a Diversity-Oriented Synthesis (DOS) Library as Inhibitors of Scavenger Receptor BI (SR-BI)-Mediated Lipid Uptake.” Bioorganic & Medicinal Chemistry Letters 25.10 (2015): 2100–2105.
Version
Final published version
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 IC[subscript 50] = 0.10 μM) and solubility (79 μM in PBS), and it was designated as probe ML312.
MIT Department
Massachusetts Institute of Technology. Department of Biology
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Creative Commons Attribution-NonCommercial-NoDerivs License
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DOI of Published Version
https://doi.org/10.1016/j.bmcl.2015.03.073
