A convergent total synthesis of the Annonaceous acetogenin squamostolide, in a longest linear sequence of nine steps from D-mannitol, is reported. Central to the efficiency of the synthesis is a highly selective tandem ring-closing/cross metathesis step in which lactone formation and fragment coupling are accomplished. (c) 2007 Elsevier Ltd. All rights reserved.
A convergent total synthesis of the Annonaceous acetogenin squamostolide, in a longest linear sequence of nine steps from D-mannitol, is reported. Central to the efficiency of the synthesis is a highly selective tandem ring-closing/cross metathesis step in which lactone formation and fragment coupling are accomplished. (c) 2007 Elsevier Ltd. All rights reserved.
Concise Total Synthesis of (−)-Muricatacin by Tandem Ring-Closing/Cross Metathesis
作者:Kevin J. Quinn、André K. Isaacs、Rebecca A. Arvary
DOI:10.1021/ol040047f
日期:2004.11.1
A strategy for the synthesis of chiral 5-(1-hydroxyalk-2-enyl)-5H-furan-2-ones and its application to the total synthesis of (-)-muricatacin, in four steps and 37% overall yield from (R,R)-hexa-1,5-diene-3,4-diol, are described. The key synthetic step in this approach is a highly regioselective and stereoselective tandem ring-closing/cross metathesis reaction in which both lactone formation and alkyl