A pharmaceutically acceptable salt of Benzamide Compound

Abstract

The invention concerns pharmaceutical salt of a compound of the formula (I) wherein Ring A is heterocyclyl; m is 0-4 and each R1 is a group such as hydroxy, halo, trifluoromethyl and cyano; R2 is halo and n is 0-2; and each R4 is a group such as hydroxyl, halo, trifluoromethyl and cyano; p is 0-4; and R3 is amino or hydroxyl; or pharmaceutically-acceptable salt or in-vivo-hydrolysable ester or amide thereof; pharmaceutical composition containing them and its use in the treatment of diseases or medical condions medicated by histone deacetylase.