Disclosed is a compound of the general formula (I) and salts thereof, in which: -NR1R2 is bonded to the phenyl ring at the 3-position R1 and R2, which may be identical or different, are selected from the group consisting of: H and a linear or branched alkyl group having from 1 to 6 carbon atoms or together form an aromatic or aliphatic ring with 5 or 6 atoms Y is selected from the group consisting of: H, COOH, and -CH(OR3)COOH Z is -CH(OR3)COOH and R3 is H. The compound is useful for cancer treatments.