Patent ID: 7799799

Claim:
A compound of the formula (I): in which: X represents a —(CH 2 ) n — radical where n is a whole number from 1 to 6, or a group with formula CH 2 —Z—(CH 2 ) 2 —, in which Z represents an O(CH 2 ) m — group in which m is a whole number from 0 to 3; R 1 represents a linear, branched or cyclic C 1 -C 8 alkyl radical; Am represents an NR 3 R 4 group in which R 3 and R 4 are identical or different and independently of each other represent: a hydrogen atom; a linear, branched or cyclic C 1 -C 6 alkyl radical or a C 1 -C 3 radical substituted with a C 3 -C 6 cycloalkyl radical; or a (CH 2 ) i —O—B radical in which B represents a hydrogen atom or a (CH 2 ) k H alkyl radical, where l and k are whole numbers, l≧2 and l+k≦6; or R 3 and R 4 together with the nitrogen atom to which they are attached form a heterocycle containing 4 to 6 links which may optionally contain one or more heteroatoms selected from N and O and optionally carrying one or more substituents selected from a linear, branched or cyclic C 1 -C 6 alkyl radical; R 2 represents a hydrogen atom or a linear, branched or cyclic C 1 -C 6 alkyl radical; and their pharmaceutically acceptable salts.