Patent ID: 8420632

Claim:
A compound of formula (I) below: in which: R 1 represents a hydrogen, an alkyl radical, a substituted alkyl radical, an alkenyl radical, a substituted alkenyl radical, an alkynyl radical, a substituted alkynyl radical, an aralkyl radical, a substituted aralkyl radical, a heteroaralkyl radical, a substituted heteroaralkyl radical, a —C(O)—R 4 radical, a —SO 2 —R 4 radical, or a C(O)OR 4 radical, with R 4 having the meanings given hereinafter; R 2 is a hydrogen atom or a lower alkyl radical; R 3 is an alkyl radical, a substituted alkyl radical, an alkenyl radical, a substituted alkenyl radical, an alkynyl radical, a substituted alkynyl radical, an aryl radical, a substituted aryl radical, an aralkyl radical, a substituted aralkyl radical, a heterocyclic radical, a substituted heterocyclic radical, a cycloalkyl radical, a substituted cycloalkyl radical, a heteroaryl radical, a substituted heteroaryl radical, a heteroaralkyl radical, or a substituted heteroaralkyl radical; R 4 is an alkyl radical, a substituted alkyl radical, an alkenyl radical, a substituted alkenyl radical, an alkynyl radical, a substituted alkynyl radical, an aryl radical, a substituted aryl radical, an aralkyl radical, or a substituted aralkyl radical ; and, n can take the values of 0, 1, 2 or 3; and also addition salts of said compound of formula (I) with a pharmaceutically acceptable acid, addition salts of said compound of formula (I) with a pharmaceutically acceptable base, and enantiomers of said compound of formula (I).