Abstract
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Exo-diastereoselective 1,3-dipolar cycloadditions of azomethine ylides derived from α-amino ac acid esters to (2R)-3-Benzoyl-4-methylene-2-phenyloxazolidin-5-one (1) are reported. The cycloaddition products are conveniently converted to polyfunctional prolines in high enantiomeric purity. © 1995.