Reaction catalyzed by papain (3.4.22.2)

		+			=			+
	(RS)-mandelic hydrazide	+		benzyloxycarbonyl-Gly	=		N1-(benzyloxycarbonyl-Gly)-N2-[(R)-mandelyl]hydrazine	+		N1-(benzyloxycarbonyl-Gly)-N2-[(S)-mandelyl]hydrazine