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Synthesis 2006(22): 3895-3901
DOI: 10.1055/s-2006-950328
DOI: 10.1055/s-2006-950328
PAPER
© Georg Thieme Verlag Stuttgart · New York
New Route to the 5,12-Dihydro-7H-benzo[2,3]azepino[4,5-b]indol-6-one Core via a Tin-Mediated Indole Synthesis
Weitere Informationen
Received
6 July 2006
Publikationsdatum:
20. Oktober 2006 (online)
Publikationsverlauf
Publikationsdatum:
20. Oktober 2006 (online)
Abstract
A new route to the paullone scaffold was designed. The key step consisted in a free radical indole formation from an o-alkenyl arylisonitrile followed by Stille coupling with N-Boc-o-iodoaniline. After deprotection and closure of the seven-membered ring by lactamisation, parent or cyano-substituted paullones were obtained in moderate to good yields.
Key words
paullone - CDK inhibitor - tin - radical reaction - seven-membered lactam
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