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Mikael Esmann

Synthesis of bufalin derivatives with inhibitory activity against prostate cancer cells

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

  • Xiao-Feng Yuan, Ukendt
  • Hai-Yan Tian
  • ,
  • Juan Li, Danmark
  • Lu Jin, Ukendt
  • Shu-Tai Jiang, Ukendt
  • Ken Wing-Keung Liu, Ukendt
  • Cheng Luo, Ukendt
  • David A Middleton
  • ,
  • Mikael Esmann
  • Wen-Cai Ye
  • ,
  • Ren-Wang Jiang

Bufalin possesses a strong anti-cancer effect, but the cardiac toxicity targeting the Na(+), K(+)-ATPase limits its application. Here, two bufalin derivatives, bufadienolactam (1) and secobufalinamide (2), were synthesised by treating bufalin with ammonium acetate in dimethylformamide solution. Their structures were elucidated by extensive spectroscopic methods. The structure of compound 2 was further confirmed by single-crystal X-ray diffraction analysis. Compounds 1 and 2 expressed strong inhibitory activities against androgen-dependent prostate cancer cells (IC₅₀ values about 10 μM), but only weak inhibition on Na(+), K(+)-ATPase (Ki about 70 μM), indicating that they might be potential anti-prostate cancer agents without severe cardiac toxicity.

OriginalsprogEngelsk
TidsskriftNatural Product Research
Vol/bind28
Nummer11
Sider (fra-til)843-7
Antal sider5
ISSN1478-6419
DOI
StatusUdgivet - 2014

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