Synthesis and Molecular Structure of Chiral (2S, 5S)-tert-Butyl 3-Oxo-2-oxa-5-azabicyclo[2.2.2]octane-5-carboxylate

Figure 1

Molecular view of (2S, 5S)-tert-butyl 3-oxo-2-oxa-5-azabicyclo[2.2.2]heptane-5-carboxylate. One of two isomers is only shown (below, side, and top views). Displacement ellipsoids are drawn at the 50% probability level. The blue and red ellipsoids represent N and O atoms, respectively.