Reaction catalyzed by penicillin amidase (3.5.1.11)

		+		H2O	=			+
	cephradine	+		H2O	=		(2R)-amino(cyclohexa-1,4-dien-1-yl)acetic acid	+		(6R,7R)-7-amino-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid