Gamma lactam analogues based on the penicillin and cephalosporin frame
work have been synthesised which, in keeping with their design as pote
ntial inhibitors of bacterial cell wall biosynthesis, show high reacti
vity towards modest nucleophiles. An X-ray crystal structure of one of
these compounds allows structural comparisons to be made with classic
al beta-lactam antibiotics. Copyright (C) 1996 Elsevier Science Ltd