Reaction catalyzed by cyclomaltodextrin glucanotransferase (2.4.1.19)

		+			=			+
	3-ketobutylidene-beta-2-chloro-4-nitrophenylmaltopentaoside	+		maltose	=		3-ketobutylidene-beta-2-chloro-4-nitrophenylmaltotetraoside	+		maltotriose