... Downloading zip file containing 3 articles... JavaScript is disabled on your browser. Please enable JavaScript to use all the features on this page. Tetrahedron Letters. Volume 22, Issue 20, 1981, Pages 1871–1874. Cover image Cover image. Carbacyclic isosteres of penicillanic and carbapenemic acids. Synthesis of bicyclo[3.2.0]Heptan-6-ones as potential enzyme inhibitors. ...