4.2.1.163	(4Z)-2-oxohept-4-enedioate + H2O	-	
4.2.1.163	2-hydroxy-2,4-heptadiene-1,7-dioate + H2O	-	
4.2.1.163	2-oxo-hept-4-ene-1,7-dioate + H2O	-