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  • Title: Asymmetric Total Synthesis of Lancifodilactone G Acetate. 1. Diastereoselective Synthesis of CDEFGH Ring System.
    Author: Sun TW, Liu DD, Wang KY, Tong BQ, Xie JX, Jiang YL, Li Y, Zhang B, Liu YF, Wang YX, Zhang JJ, Chen JH, Yang Z.
    Journal: J Org Chem; 2018 Jul 06; 83(13):6893-6906. PubMed ID: 29508610.
    Abstract:
    The stereoselective construction of the CDEFGH ring system of lancifodilactone G is described. The key steps in this synthesis are (i) ring-closing metathesis for formation of the oxa-bridged eight-membered ring; (ii) an intramolecular Pauson-Khand reaction for construction of the sterically congested F ring; and (iii) sequential cross-metathesis, hydrogenation, and lactonization reactions for installation of the anomerically stabilized bis-spiro ketal fragment of lancifodilactone G.
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