| abstract |
Compounds of formula (I): (see formula (I)) in which: R1 represents a hydrogen atom or a group of formula COR4, or R1 represents a group of formula (A): (see formula (A)) , R2 represents a group of formula NR5R6, or R2 represents a nitrogen, aryl or heteroaryl heterocyclic group, R3 represents a hydrogen atom or an alkyl group, m represents an integer between 1 and 6, n represents 0, 1 or 2, its optical isomers, as well as its addition salts to a pharmaceutically acceptable acid. |