Seventy-two hundred potential inhibitors of the histone deacetylase (HDAC) enzyme family, based on a 1, 3-dioxane diversity structure, were synthesized on polystyrene macrobeads. The compounds were arrayed for biological assays in a “one bead-one stock solution” format. Metal-chelating functional groups were used to direct the 1, 3-dioxanes to HDAC enzymes, which are zinc hydrolases. Representative structures from this library were ...