Indazole estrogens: Highly selective ligands for the estrogen receptor β

Meri De Angelis, Fabio Stossi, Kathryn A. Carlson, Benita S. Katzenellenbogen, John A. Katzenellenbogen

Research output: Contribution to journalArticle

Abstract

The estrogen receptors, ERα and ERβ, are important pharmaceutical targets. To develop ERβ-selective ligands, we synthesized a series of nonsteroidal compounds having a phenyl-2H-indazole core with different groups at C-3. Several of these show high affinity and good ERβ selectivity, especially those with polar and/or polarizable substituents at this site (halogen, CF3, nitrile); the best compounds have affinities for ERβ comparable to estradiol, with ERβ affinity selectivity >100. This potency and ERβ selectivity is also seen in cell-based transcriptional assays, where several compounds showed ERβ efficacies equivalent to that of estradiol with ERβ potency selectivities of 100. These compounds might prove useful as selective pharmacological probes to study the biological actions of estrogens mediated through ERβ, and they might lead to the development of useful pharmaceuticals. These findings also contribute to an evolving pharmacophore that characterizes certain nonsteroidal ligands having high ERβ subtype affinity and potency selectivity.

Original languageEnglish (US)
Pages (from-to)1132-1144
Number of pages13
JournalJournal of Medicinal Chemistry
Volume48
Issue number4
DOIs
StatePublished - Feb 24 2005

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Indazoles
Estrogen Receptors
Estradiol
Estrogens
Ligands
Nitriles
Halogens
Pharmaceutical Preparations
Pharmacology

ASJC Scopus subject areas

  • Molecular Medicine
  • Drug Discovery

Cite this

Indazole estrogens : Highly selective ligands for the estrogen receptor β. / De Angelis, Meri; Stossi, Fabio; Carlson, Kathryn A.; Katzenellenbogen, Benita S.; Katzenellenbogen, John A.

In: Journal of Medicinal Chemistry, Vol. 48, No. 4, 24.02.2005, p. 1132-1144.

Research output: Contribution to journalArticle

De Angelis, Meri ; Stossi, Fabio ; Carlson, Kathryn A. ; Katzenellenbogen, Benita S. ; Katzenellenbogen, John A. / Indazole estrogens : Highly selective ligands for the estrogen receptor β. In: Journal of Medicinal Chemistry. 2005 ; Vol. 48, No. 4. pp. 1132-1144.
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