Studies on lactams. Part 74. An approach to the total synthesis of amino sugars viaβ-lactams

Abstract
Convenient intermediates for mono- and di-amino sugars related to antibiotics can be prepared in a stereocontrolled fashion by the rearrangement of 3,4-disubstituted azetidin-2-ones which in turn can be synthesized by stereoselective annelation of certain imino compounds by substituted acetic acid derivatives.