Synthesis and NMR studies of key intermediates to a new class of β-lactam: the trinems

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Carla Marchioro, Giorgio Pentassuglia, Alcide Perboni and Daniele Donati


Abstract

An efficient synthesis of the four isomeric epoxides 4a–d, key compounds to the trinem ring system, starting from (3R,4R,1′R)-(+)-4-acetoxy-3-[1′- (tert-butyldimethylsilyloxy)ethyl]azetidin-2-one 6a is described. All the intermediates have been characterized by means of NMR techniques.


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