77589-57-2Relevant academic research and scientific papers
Rearrangements of Penicillin Sulfoxides. 2. Spectral Data and X-ray Crystallography of the Novel Imidazothiazine Ring System
Nudelman, Abraham,Haran, Tali E.,Shakked, Zippora
, p. 3026 - 3029 (1981)
The novel imidazothiazine ring system has been obtained by rearrangement of penicillin sulfoxide esters upon treatment with ethoxycarbonyl isocyanate.The unexpected structure of the rearrangement product 4b was established by X-ray analysis.A
