Abstract

Z-Endoxifen is widely regarded as the most active metabolite of tamoxifen, and has recently demonstrated a 26.3% clinical benefit in a phase I clinical trial to treat metastatic breast cancer after the failure of standard endocrine therapy. Future pharmacological and pre-clinical studies of Z-endoxifen would benefit from reliable and efficient synthetic access to the drug. Here, we describe a short and efficient, stereoselective synthesis of Z-endoxifen capable of delivering multi-gram (37 g) quantities of the drug in >97% purity with a Z/E ratio >99% after trituration.

Original languageEnglish
Pages (from-to)1352-1356
Number of pages5
JournalBioorganic & Medicinal Chemistry Letters
Volume28
Issue number8
DOIs
Publication statusPublished - 1 May 2018

Keywords

  • Antiestrogens
  • Tamoxifen analogs
  • Endoxifen
  • Nuclear receptors
  • Stereoselective synthesis

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