| abstract |
A compound of formula (I):n or a tautomeric form thereof and/or a pharmaceutically acceptable salt thereof, and/or a pharmaceutically acceptable solvate thereof, wherein: nA¹ represents a substituted or unsubstituted aromatic heterocyclyl group; nA² represents a benzene ring having in total up to five substituents; nX represents O, S or NR¹ wherein R¹ represents a hydrogen atom, an alkyl group, an acyl group, an aralkyl group, wherein the aryl moiety may be substituted or unsubstituted, or a substituted or unsubstituted aryl group; nY represents O or S providing that Y does not represent O when X represents NR¹; nR² and R³ each represent hydrogen, or R² and R³ together represent a bond; and nn represents an integer in the range of from 2 to 6; a process for preparing such a compound; a pharmaceutical composition comprising such a compound; and the use of such a compound and a composition in medicine. |