Patent ID: 8513297

Claim:
A biaromatic compound having the following general formula (I): in which: one of Ar1 and Ar2 is phenyl and the other is thiophene, R1 is a radical of formula (a) or (b) below: wherein R5 is as defined below; R2 is a radical of formula (CH 2 ) m —NR 6 —CQ—(NH) n R 7 , wherein Q, R6, R7, m and n are as defined below; R3 and R4, which may be identical or different, are each a hydrogen atom, a halogen atom, a linear or cyclic alkyl radical having from 1 to 12 carbon atoms that may be interrupted with oxygen, fluorine or nitrogen atoms, a hydroxyl radical, an alkoxy radical having from 1 to 10 carbon atoms, a polyether radical, an aralkyl radical or an aryloxy radical; R5 is a hydroxyl radical, a radical OR8 or a hydroxylamine radical, wherein R8 is as defined below; R6 is a lower alkyl radical having from 1 to 4 carbon atoms; R7 is an alkyl radical having from 1 to 12 carbon atoms, an aryl radical, an aralkyl radical, a heteroaryl radical or a heterocyclic radical; R8 is an alkyl, aryl or aralkyl radical; m and n have the values 0 or 1; Q is an oxygen or sulfur atom; R9 is a hydrogen atom or an alkyl radical having from 1 to 12 carbon atoms; or an optical or geometrical isomer of said compound of formula (I), or a salt thereof.