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A simple and convenient route is presented for the preparation of regio- and stereoisomers of novel azepane β-amino esters, starting from bicyclic β-lactam isomers. The synthetic procedure consists of dihydroxylation of the olefinic bond of the alicyclic amino esters, followed by NaIO 4 -mediated cleavage of the diol intermediate and reductive ring closure, which furnishes novel regioisomeric...
A simple strategy is presented for the introduction of a nitrogen atom into the carbocycle of an aminocyclopentenecarboxylic ester via dihydroxylation of the olefinic bond, followed by NaIO 4 -mediated cleavage of the diol intermediate and ring expansion, resulting in new regioisomeric 3-amino-4-piperidinecarboxylic acid derivatives. This method permits the preparation of amino esters with...
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