A series of amidinium-substituted 2-dibenzofuranylcarbapenems with potent a
ctivity against MRSA has been synthesized via a Stille cross-coupling react
ion. These new carbapenems show reduced serum protein binding and improved
in vivo efficacy as a consequence of the positively charged amidinium subst
ituent. (C) 1999 Elsevier Science Ltd. All rights reserved.