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J Med Chem. 2011 Mar 24;54(6):1613-25. doi: 10.1021/jm101120u. Epub 2011 Feb 22.

Design, synthesis, and biological evaluation of imidazolyl derivatives of 4,7-disubstituted coumarins as aromatase inhibitors selective over 17-α-hydroxylase/C17-20 lyase.

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1
Dipartimento Farmaco-Chimico, Università degli Studi di Bari Aldo Moro, via Orabona 4, I-70125 Bari, Italy.

Abstract

The design, synthesis, and biological evaluation of a series of new aromatase (AR, CYP19) inhibitors bearing an imidazole ring linked to a 7-substituted coumarin scaffold at position 4 (or 3) are reported. Many compounds exhibited an aromatase inhibitory potency in the nanomolar range along with a high selectivity over 17-α-hydroxylase/C17-20 lyase (CYP17). The most potent AR inhibitor was the 7-(3,4-difluorophenoxy)-4-imidazolylmethyl coumarin 24 endowed with an IC(50) = 47 nM. Docking simulations on a selected number of coumarin derivatives allowed the identification of the most important interactions driving the binding and clearly indicated the allowed and disallowed regions for appropriate structural modifications of coumarins and closely related heterocyclic molecular scaffolds.

PMID:
21341743
DOI:
10.1021/jm101120u
[Indexed for MEDLINE]

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