Reaction catalyzed by dipeptidyl-peptidase I (3.4.14.1)

		+		H2O	=			+
	beta-(2-thienyl)Ala-Phe-7-amido-4-methylcoumarin	+		H2O	=		beta-(2-thienyl)Ala-Phe	+		7-amino-4-methylcoumarin