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[摘要]:The asymmetric synthesis of the key pyrrolidinone core, including a highly elaborated exocyclic carbon chain, of the gamma-lactam beta-lactone antibiotic oxazolomycin A is described. Principal features include the Birch reduction of an aromatic pyrrole nucleus, a late stage RuO4 catalyzed pyrrolidine oxidation, and a highly diastereoselective organocerium addition to an aldehyde. |
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