Novel approach to biscarbazole alkaloids via Ullmann coupling--synthesis of murrastifoline-A and bismurrayafoline-A.

نویسندگان

  • Carsten Börger
  • Olga Kataeva
  • Hans-Joachim Knölker
چکیده

Unprecedented Ullmann couplings of murrayafoline-A with either 6-bromo- or 4-bromocarbazole derivatives provide highly efficient synthetic routes to the biscarbazole alkaloids murrastifoline-A (6 steps, 66% overall yield) and bismurrayafoline-A (6 steps, 28% overall yield).

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عنوان ژورنال:
  • Organic & biomolecular chemistry

دوره 10 36  شماره 

صفحات  -

تاریخ انتشار 2012