Patent ID: 7112574

Claim:
A compound of the general formula (I): wherein R 2 and R 3 , which may be the same or different, represent a lower alkyl; a lower alkenyl; a lower alkynyl; a lower (ar)alkyl; a lower alkoxy; a lower alkylidenehydrazino; a cyano; an acetoamino; a halogen; a group of the general formula —NR 4 R 5 , wherein R 4 and R 5 represent, independently, a hydrogen atom, a lower alkyl or an (ar)alkyl group; or a group of the general formula —SR 6 , wherein R 6 represents a hydrogen, a lower alkyl, a lower alkanoyl or an (ar)alkyl group; or a salt of said compound, with the provisos that: (i) when R 2 represents —NH 2 , R 3 represents a lower alkenyl, a lower alkynyl, a lower (ar)alkyl, a lower alkylidenehydrazino, a cyano, an acetoamino, a group of the general formula —NR 4 R 5 ; wherein one of —R 4 or R 5 represents, independently, a hydrogen atom; or wherein R 4 and R 5 represent, independently, -a lower alkyl or an (ar)alkyl group, or a group of the general formula —SR 6 ; wherein R 6 represents a hydrogen, a lower alkyl, a lower alkanoyl or an (ar)alkyl group; (ii) when R 2 represents an alkylthio, R 3 does not represent an alkyl; (iii) when R 2 represents a halogen or an alkyl, R 3 does not represent, respectively, a halogen or an alkyl.