Reaction catalyzed by hydroperoxide dehydratase (4.2.1.92)

		=			+			+		H2O
	(9Z,11E,13R)-13-hydroperoxyoctadeca-9,11-dienoic acid	=		11-hydroxy-12(13)-epoxy-octadecadienoic acid	+		9-hydroxy-12(13)-epoxy-octadecadienoic acid	+		H2O