Patent ID: 8372879

Claim:
A compound of general formula (I) below: in which: R1, R2, R3 and R4, which may be identical or different, represent: a hydrogen, a C 1 -C 4 alkyl radical, a hydroxymethyl, a hydroxyethyl, a (C 1 -C 4 alkoxy)carbonyl, a C 1 -C 4 alkoxy, a hydroxyl, or R1 and R2 are linked to one another and form a carbon ring containing 5 or 6 carbon atoms, with the carbon atom to which they are attached, and R3 and R4, which may be identical or different, represent: a hydrogen, a C 1 -C 4 alkyl radical, or R1 and R4 are linked to one another and form a —(CH 2 ) 2 — or —(CH 2 ) 3 — chain and R2 and R3, which may be identical or different, represent: a hydrogen, a C 1 -C 4 alkyl radical, X represents an oxygen atom or a sulphur atom, Y represents a hydrogen, a chlorine atom or a fluorine atom, m can have the value 1 or 2 and n can have the value 0 or 1, and when n=0, then m=1 or 2, and when n=1, then m=1, and also the salts of the compounds of general formula (I), and the isomer and enantiomer forms thereof.