Abstract
Replacement of the oxo group on the four-membered ring of penicillin and other β-lactam antibiotics by sulfur proceeds in extremely low yields. Thiopenam derivatives of this type can now be synthesized via cycloaddition and desilylation (R1= tBu, R2 = H, CO2Me, R3 = H, Me)
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Schedule a callMore From: Angewandte Chemie International Edition in English
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