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  • Title: Oppolzer sultam directed aldol as a key step for the stereoselective syntheses of antitumor antibiotic belactosin C and its synthetic congeners.
    Author: Kumaraswamy G, Padmaja M, Markondaiah B, Jena N, Sridhar B, Kiran MU.
    Journal: J Org Chem; 2006 Jan 06; 71(1):337-40. PubMed ID: 16388653.
    Abstract:
    [reaction: see text] An efficient protocol has been developed using D-(2R)-Oppolzer sultam as a chiral auxiliary for generating anti/syn diastereomers with high enantiopurity and utilized in the efficient synthesis of natural product belactosin C and their synthetic congeners. It has been observed that a variation in the stoichiometry of the Lewis acid led to a difference in anti/syn selectivity.
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