This invention comprises the novel compounds of formula (I)
##STR00001##
wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7,
R.sup.8, R.sup.9, X and Y have defined meanings, having histone
deacetylase inhibiting enzymatic activity; their preparation,
compositions containing them and their use as a medicine.