Patent ID: 7846926

Claim:
Compounds of general formula (I) in which R 1 and R 2 are selected from the group consisting of a hydrogen atom and a methyl radical; R3 and A together form a C 3 -C 8 saturated aliphatic ring, comprising one or more heteroatoms or R3 represents a radical chosen from the group consisting of a hydrogen atom, a C 1 -C 4 alkyl radical and a benzyl radical and A represents a radical chosen from the group consisting of a hydrogen atom, a C 1 -C 4 alkyl radical, a benzyl radical and a group of formula (II) in which a varies from 2 to 5, R4 and B together form a C 3 -C 8 ring or R4 represents a radical chosen from the group consisting of a hydrogen atom, a C 1 -C 4 alkyl radical and a benzyl radical, it being possible for R3 and R4 to be connected by an alkylene chain comprising 2 or 3 carbon atoms, and B represents a radical chosen from the group consisting of: a hydrogen atom, a C 1 -C 4 alkyl radical, a benzyl radical, a group of formula (III) in which b varies from 2 to 5 and c varies, from 2 to 5 and R5 to R7 are a radical chosen from the group consisting of a hydrogen atom, a C 1 -C 4 alkyl radical and a benzyl radical, it being possible for R4 and R5 and/or R5 and R6 and/or R6 and R7 to be connected by an alkylene chain comprising 2 or 3 carbon atoms; and a group of formula (IV) in which c varies from 2 to 5 and R8 and R9 represent, each independently of one another, a hydrogen atom or a C 1 -C 5 alkyl radical, it being possible for R4 and R8 to be connected by an alkylene chain comprising 2 or 3 carbon atoms, or R8 and R9 together form a C 3 -C 8 ring; or their pharmaceutically acceptable salts, in particular their addition salts, with inorganic or organic acids.