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Communication | Regular issue | Vol 16, No. 9, 1981, pp.1495-1498
Published online, 1st January, 1970
DOI: 10.3987/R-1981-09-1495
Synthesis of Azapenem and Azacephem Ring System

Isao Nagakura*

*Institute de Chimie Organique, Université de Lausanne, 2, rue de la Barre, CH 1005 Lausanne, Switzerland


Novel β-lactam ring systems, 7-oxo-1,3-diazabicyclo[3.2.0]hept-3-ene (III), 7-oxo-1,4-diazabicyclo[3.2.0]hept-3-ene (IV), and 8-oxo-1,3-diazabicyclo[4.2.0]oct-3-ene (V) have been synthesized via cyclization of olefinic azide.