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  • Title: Diastereoselective synthesis of cyclopentanoids: applications to the construction of the ABCD tetracyclic core of retigeranic acid A.
    Author: Zhang J, Wang X, Li S, Li D, Liu S, Lan Y, Gong J, Yang Z.
    Journal: Chemistry; 2015 Sep 01; 21(36):12596-600. PubMed ID: 26224036.
    Abstract:
    A concise and efficient approach for the construction of the tetracyclic carbon skeleton of retigeranic acid A is described. The key transformations include a novel Rh-catalyzed [3+2] cycloaddition of enyol to afford cyclopentanoid E, bearing two contiguous quaternary stereocenters at the bridgehead positions, and an intramolecular Pauson-Khand reaction to construct the advanced tetracyclic core structure of retigeranic acid A.
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