New Drug-Like Hydroxyphenylnaphthol Steroidomimetics As Potent and Selective 17β-Hydroxysteroid Dehydrogenase Type 1 Inhibitors for the Treatment of Estrogen-Dependent Diseases
- 28 December 2010
- journal article
- Published by American Chemical Society (ACS) in Journal of Medicinal Chemistry
- Vol. 54 (2), 534-547
- https://doi.org/10.1021/jm1009082
Abstract
Inhibition of 17β-hydroxysteroid dehydrogenase type 1 (17β-HSD1) is a novel and attractive approach to reduce the local levels of the active estrogen 17β-estradiol in patients with estrogen-dependent diseases like breast cancer or endometriosis. With the aim of optimizing the biological profile of 17β-HSD1 inhibitors from the hydroxyphenylnaphthol class, structural optimizations were performed at the 1-position of the naphthalene by introduction of different heteroaromatic rings as well as substituted phenyl groups. In the latter class of compounds, which were synthesized applying Suzuki-cross coupling, the 3-methanesulfonamide 15 turned out to be a highly potent 17β-HSD1 inhibitor (IC50 = 15 nM in a cell-free assay). It was also very active in the cellular assay (T47D cells, IC50 = 71 nM) and selective toward 17β-HSD2 and the estrogen receptors α and β. It showed a good membrane permeation and metabolic stability and was orally available in the rat.Keywords
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