Synthesis and antimicrobial spectrum of FCE 22101 and its orally available ester FCE 22891

Abstract
The most efficient routes for the synthesis of FCE 22101, a pencm antibiotic characterized by a carbamoyloxymethyl sidechain at C-2 identical to that of cefuroxime and cefotaxime, and of FCE 22891, its orally absorbed pro-drug, are described. On the basis of in-vitro antimicrobial profile and other characteristics the compounds have been considered worthy of further development.

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