| abstract |
Addition salts with compounds of formula (I), or optical isomers thereof, or with pharmaceutically acceptable acids: Where R 1 represents a hydrogen atom or a group of formula COR 4 R 1 is a group of formula (A): Indicates R 2 represents a group of the formula NR 5 R 6 , or R 2 represents a nitrogen-containing heterocyclic group, an aryl group or a heteroaryl group, R 3 represents a hydrogen atom or an alkyl group, m represents any integer between 1 and 6, including 1 and 6, n represents 0, 1 or 2. |