Cyclic Depsipeptide BE-43547A2: Synthesis and Activity against Pancreatic Cancer Stem Cells

  • Yuanjun Sun
  • , Yahui Ding
  • , Dongmei Li
  • , Ruifei Zhou
  • , Xiuwen Su
  • , Juan Yang
  • , Xiaoqian Guo
  • , Chuanke Chong
  • , Jinghan Wang
  • , Weicheng Zhang
  • , Cuigai Bai
  • , Liang Wang*
  • , Yue Chen
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

Asymmetric total synthesis of the cyclic depsipeptide BE-43547A2 was achieved in 15 linear steps on a 350 mg scale in one batch. The synthesis features the highly diastereoselective construction of an α-hydroxy-β-ketoamide through α-hydroxylation with a d.r. of up to 86:1. BE-43547A2 significantly reduces the percentage of pancreatic cancer stem cells (PCSCs) in Panc-1 cell cultures, and dramatically reduces the tumorsphere-forming capability of Panc-1 cells. An in vivo tumor-initiation assay, a gold standard for cancer stem cell assays, confirmed that BE-43547A2 can abolish the tumorigenesis of Panc-1 cells. The anti-PCSC activity of BE-43547A2 could make this depsipeptide scaffold a promising starting point for discovering new PCSC-targeting drugs.

Original languageEnglish
Pages (from-to)14627-14631
Number of pages5
JournalAngewandte Chemie - International Edition
Volume56
Issue number46
DOIs
Publication statusPublished - 13 Nov 2017
Externally publishedYes

Keywords

  • cancer stem cells
  • cyclic depsipeptides
  • hydroxylation
  • pancreatic cancer
  • total synthesis

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