Reaction catalyzed by beta-glucuronidase (3.2.1.31)

		+		H2O	=			+
	4-[([[(3b,22S,23R)-3-hydroxy-17,23-epoxyveratraman-28-yl]carbonyl]oxy)methyl]-2-nitrophenyl beta-D-glucopyranosiduronic acid	+		H2O	=		D-glucuronate	+		4-hydroxy-3-nitrobenzyl (3b,22S,23R)-3-hydroxy-17,23-epoxyveratraman-28-carboxylate