Patent ID: 7148245

Claim:
A biphenyl compound substituted with an aromatic or heteroaromatic radical, characterized in that they correspond to the general formula (I) below: in which: Ar represents an aromatic or heteroaromatic radical chosen from: Z being O or S, R 1 represents —COR 9 , R 2 and R 3 , taken together, form a 5- or 6-membered ring, optionally substituted with at least one methyl, R 4 represents H, a halogen atom, linear or branched C 1 –C 20 alkyl, —OR 10 , —OCOR 11 or a polyether radical, R 5 represents H, a halogen atom, linear or branched C 1 –C 20 alkyl, —OCOR 11 , —OR 12 , mono- or polyhydroxyalkl, —NO 2 , —(CH 2 ) n —NHCOCH 3 , —CH═CH—COR 13 , —(CH 2 ) n COR 13 , n being 0 to 6, —O—(CH 2 ) m COR 13 , —O—(CH 2 ) m OH, m being 1 to 12, optionally substituted aryl, optionally substituted aralkyl, optionally substituted heteroaryl, a polyether radical or a —CH 2 — polyether radical, R 6 represents H, lower alkyl or —OR 10 , R 9 represents —OR 14 , H or lower alkyl, R 10 represents H or lower alkyl, R 11 represents lower alkyl, R 12 represents H, linear or branched C 1 –C 20 alkyl, mono- or polyhydroxyalkyl, or optionally substituted aryl or aralkyl, R 13 represents H, lower alkyl, —OR 10 , aryl or R 14 represents H, r′ and r″, which may be identical or different, represent H, OH, lower alkyl, mono- or polyhydroxyalkyl, optionally substituted aryl, an amino acid residue or a peptide residue, or r′ and r″, taken together, form a heterocycle, or a salt of the compound of formula (I), or an optical or geometrical isomer of the compound of formula (I).