Reaction catalyzed by papain (3.4.22.2)

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