[2-(hydroxy-kappaO)-4-[(3-{(hydroxy-kappaO)[1-(hydroxy-kappaO)ethenyl]amino}propyl)amino]-2-{2-[(3-{(hydroxy-kappaO)[1- (hydroxy-kappaO)ethenyl]amino}propyl)amino]-2-oxoethyl}-4-oxobutanoato(6-)-kappaO]iron

C2Y5Z3 — deleted