| abstract |
A compound of formula (I):n or a salt, ester, amide or solvate thereof, in which,n R. represents hydrogen, substituted or unsubstituted alkyl or an acyl group; R b and R c are independently hydrogen or a substituted or unsubstituted aryl group or a group -OR a ; or R b and R c together with the carbon atoms to which they are attached form a substituted or unsubstituted carbocyclic group; R d and R e are independently hydrogen, substituted or unsubstituted aryl or a group -OR a ; or R d and R e together with the carbon atoms to which they are attached form a substituted or unsubstituted carbocyclic group; A' represents an alkylene or an alkenylene group; A 2 represents hydrogen, substituted or unsubstituted alkyl or an aralkyl group substituted or unsubstituted in the aryl moiety; nand Het represents a substituted or unsubstituted heterocyclic group; a process for preparing such a compound, a pharmaceutical composition containing such a compound and the use of such compounds and compositions in medicine. |