| abstract |
The invention concerns a compound of the formula (I) n nwherein Ring A is heterocyclyl; m is 0-4 and each R 1 is a group such as hydroxy, halo, trifluoromethyl and cyano; R 2 is halo and n is 0-2; and each R 4 is a group such as hydroxy, halo, trifluoromethyl and cyano; p is 0-4; and R 3 is amino or hydroxy;n nor pharmaceutically-acceptable salts or in-vivo-hydrolysable ester or amide thereof;n nprocesses for their preparation, pharmaceutical compositions containing them and their use in the treatment of diseases or medical conditions mediated by histone deacetylase. |