Bicyclic derivatives of the potent dual aromatase-steroid sulfatase inhibitor 2-bromo-4-{[(4-cyanophenyl)(4h-1,2,4-triazol-4-yl)amino]methyl}phenylsulfamate: synthesis, SAR, crystal structure, and in vitro and in vivo activities

ChemMedChem
Paul M WoodBarry V L Potter

Abstract

The design and synthesis of a series of bicyclic ring containing dual aromatase-sulfatase inhibitors (DASIs) based on the aromatase inhibitor (AI) 4-[(4-bromobenzyl)(4H-1,2,4-triazol-4-yl)amino]benzonitrile are reported. Biological evaluation with JEG-3 cells revealed structure-activity relationships. The X-ray crystal structure of sulfamate 23 was determined, and selected compounds were docked into the aromatase and steroid sulfatase (STS) crystal structures. In the sulfamate-containing series, compounds containing a naphthalene ring are both the most potent AI (39, IC(50 AROM)=0.25 nM) and the best STS inhibitor (31, IC(50 STS)=26 nM). The most promising DASI is 39 (IC(50 AROM)=0.25 nM, IC(50 STS)=205 nM), and this was evaluated orally in vivo at 10 mg kg(-1), showing potent inhibition of aromatase (93 %) and STS (93 %) after 3 h. Potent aromatase and STS inhibition can thus be achieved with a DASI containing a bicyclic ring system; development of such a DASI could provide an attractive new option for the treatment of hormone-dependent breast cancer.

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Citations

Dec 18, 2013·Chemical Reviews·William Spillane, Jean-Baptiste Malaubier
May 25, 2011·Journal of Medicinal Chemistry·Fabiana CaporuscioAlberto Del Rio
Mar 31, 2011·Future Medicinal Chemistry·Mark P Thomas, Barry V L Potter
Aug 24, 2011·The Journal of Endocrinology·Atul Purohit, Paul A Foster
Jan 18, 2011·Molecular and Cellular Endocrinology·L W Lawrence WooBarry V L Potter
Mar 2, 2011·ChemMedChem·Barry V L Potter
May 21, 2015·Journal of Medicinal Chemistry·Mark P Thomas, Barry V L Potter
Mar 30, 2012·Bioorganic & Medicinal Chemistry·L W Lawrence WooBarry V L Potter
Dec 14, 2016·Biomolecules & Therapeutics·Dong-Jin YeYoung-Jin Chun
Feb 26, 2011·Journal of Pharmacology & Pharmacotherapeutics·Carol KilkennyDouglas G Altman
Oct 23, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Luke F DuncanBelinda M Abbott

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