Chasing the Elusive Benzofuran Impurity of the THR Antagonist NH-3: Synthesis, Isotope Labeling, and Biological Activity

Latika Singh, Brandon Pressly, Brenda J. Mengeling, James C. Fettinger, John Furlow, Pamela J Lein, Heike Wulff, Vikrant Singh

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We have synthesized and established the structure of a long-suspected, but hitherto unknown, benzofuran side product (EBI) formed during the synthesis of NH-3. Understanding the mechanism of its formation has enabled isotope (D) labeling. We further developed a highly efficient method for separating EBI from NH-3. Interestingly, EBI was found to be a very potent thyroid hormone receptor (THR) agonist, while NH-3 is an antagonist. In this process, we have also achieved a significantly improved synthesis of NH-3.

Original languageEnglish (US)
Pages (from-to)1870-1876
Number of pages7
JournalJournal of Organic Chemistry
Volume81
Issue number5
DOIs
StatePublished - Mar 4 2016

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Thyroid Hormone Receptors
Bioactivity
Isotopes
Labeling
Impurities
Hormones
benzofuran

ASJC Scopus subject areas

  • Organic Chemistry

Cite this

Chasing the Elusive Benzofuran Impurity of the THR Antagonist NH-3 : Synthesis, Isotope Labeling, and Biological Activity. / Singh, Latika; Pressly, Brandon; Mengeling, Brenda J.; Fettinger, James C.; Furlow, John; Lein, Pamela J; Wulff, Heike; Singh, Vikrant.

In: Journal of Organic Chemistry, Vol. 81, No. 5, 04.03.2016, p. 1870-1876.

Research output: Contribution to journalArticle

Singh, Latika ; Pressly, Brandon ; Mengeling, Brenda J. ; Fettinger, James C. ; Furlow, John ; Lein, Pamela J ; Wulff, Heike ; Singh, Vikrant. / Chasing the Elusive Benzofuran Impurity of the THR Antagonist NH-3 : Synthesis, Isotope Labeling, and Biological Activity. In: Journal of Organic Chemistry. 2016 ; Vol. 81, No. 5. pp. 1870-1876.
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