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Synthesis 2008(17): 2771-2775
DOI: 10.1055/s-2008-1067204
DOI: 10.1055/s-2008-1067204
PAPER
© Georg Thieme Verlag
Stuttgart ˙ New York
Strategy for the Assembly of Chiral Bicyclic Lactams: A Concise Synthetic Route to (-)-Coniceine
Further Information
Received
23 April 2008
Publication Date:
24 July 2008 (online)
Publication History
Publication Date:
24 July 2008 (online)
Abstract
A concise asymmetric synthesis of chiral bicyclic lactams combining a highly stereoselective 1,2-addition on SAMP hydrazones with a ring closure metathesis has been achieved. The synthetic utility of this approach has been emphasized by the total synthesis of (-)-coniceine in high enantiomeric excess.
Key words
alkaloids - lactams - metathesis - ring closure - stereoselectivity
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