Patent ID: 7626054

Claim:
A biaromatic compound having the following structural formula (I): in which: R1 is an alkyl radical selected from the group consisting of methyl, ethyl, n-propyl, isopropyl, cyclopropyl, isobutyl, tert-butyl, n-pentyl, isopentyl, n-hexyl, isohexyl, cyclohexyl, ethylenyl, allyl, propenyl, butenyl, pentenyl and hexenyl, or an acetyl group or a methylcyclopropane group; R2 is an alkyl radical having 3 to 8 carbon atoms; R3 is a hydrogen atom or an alkyl radical having 1 to 6 carbon atoms; R4 and R5, which are identical or different, are each a hydrogen atom, a halogen atom, a hydroxyl radical, an alkyl radical having from 1 to 6 carbon atoms, an alkoxy radical, a benzyloxy radical or a trifluoromethyl radical; or an isomer, optical or geometrical, pure or as a mixture, in any proportion, of said compound of formula (I) or a tautomeric form, or a salt of said compound of formula (I).