| abstract |
A mixture of the 4 stereoisomers of formula (I) below, each of the pairs of corresponding racemic diastereoisomers and each of the enantiomers corresponding to each pair, that is to say each of said stereoisomers: <IMAGE> (I) in which R1 represents: a hydrogen atom, an alkoxy group comprising from 1 to 4 carbon atoms, a trifluoromethyl group, or one or two halogen atoms; and the pair (R2, R3) has one of the following meanings: (H, H), (H, C1-C4 alkyl), (C1-C4 alkyl, C1-C4 alkyl), as well as their organic and inorganic acid addition salts. The compounds of formula (I) are therapeutically useful. |