Modulation of penicillin acylase properties via immobilization techniques: one-pot chemoenzymatic synthesis of Cephamandole from Cephalosporin C.

The modulation of penicillin G acylase (PGA) properties via immobilization techniques has been performed studying the acylation of 7-aminocephalosporanic acid with R-mandelic acid methyl ester. PGA from Escherichia coli, immobilized onto agarose activated with glycidol (glyoxyl-agarose), has been used for the design of a novel one-pot synthesis of Cephamandole in aqueous medium and without isolation of intermediates, through three consecutive biotransformations catalyzed by D-amino acid oxidase, glutaryl acylase and PGA.