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  • Title: concise synthesis of 4-acylamino analogues of 2-aminobicyclo[3.1.0]hexane-2,6-dicarboxylic acids (LY354740) from an acylnitroso Diels-Alder cycloadduct.
    Author: Lee W, Miller MJ.
    Journal: J Org Chem; 2004 Jun 25; 69(13):4516-9. PubMed ID: 15202910.
    Abstract:
    Concise total syntheses of 4-acylamino analogues of LY354740 were accomplished employing an N-Boc acylnitroso Diels-Alder cycloadduct as the starting material. The syntheses involved N-O bond cleavage, oxidation, intermolecular cyclopropanation, Bucherer-Bergs reaction, hydrolysis, and regioselective acylation with a temporary copper chelate. The synthesis of an optically active compound was also achieved.
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