Patent ID: 6992095

Claim:
A method for the treatment of psoriasis, acne, eczema or dermatitis comprising administering an effective amount of at least one stilbene compound to a patient in need of such treatment, said at least one stilbene compound having the formula (I): wherein: R 1 represents (i) the —CH 3 radical, (ii) the radical —CH 2- O—R 6 , (iii) the radical —O—R 6 , or (iv) the radical —CO—R 7 , wherein the radicals R 6 and R 7 have the meanings given below, Ar represents a radical selected from the group consisting of one of the radicals of formulae (a) to (f): wherein R 8 and R 9 have the meanings given below, R 2 and R 3 , which may be identical or different, represent a hydrogen atom or a lower alkyl radical, R 4 represents the radical —(X) m —(CH 2 ) n —Y—(CH 2 ) p —R 10 , the values m, n and p and the radicals X, Y and R 10 having the meanings given below, R 5 represents a hydrogen or halogen atom, a lower alkyl radical or a radical —O—R 6 , R 6 represents a hydrogen atom, a lower alkyl radical or a radical —CO—R 11 , R 7 represents a hydrogen atom, a lower alkyl radical, a radical —OR 12 or a radical wherein R′ and R″, which may be identical or different, represent a hydrogen atom, a lower alkyl radical, a mono- or polyhydroxyalkyl radical, or a phenyl radical optionally substituted with a substituent selected from the group consisting of a halogen atom, a hydroxyl radical, an alkyl radical, a nitro function, a methoxy group and an optionally substituted amine function, or alternatively, taken together, R′ and R″ form a heterocycle, wherein m is an integer egual to 0 or 1, n is an integer ranging from 1 to 6, inclusive, p is an integer ranging from 1 to 6, inclusive, X represents O or S(O) g , Y represents O or S(O) g , q is an integer ranging from 0 to 2, inclusive, R 8 represents a hydrogen or halogen atom, a lower alkyl radical or a radical —O—R 6 , R 9 represents a hydrogen atom, a lower alkyl radical or a radical —CO—R 11 , R 10 represents a mono- or polyhydroxyalkyl radical wherein the hydroxyls are optionally protected in the form of methoxy, ethoxy, acetoxy or acetonide, a radical —CO—R 7 or a benzyl or phenethyl radical, optionally substituted with a substituent selected from the group consisting of a halogen atom, a hydroxyl, a nitro function and a methoxy group, R 11 represents a lower alkyl radical, R 12 represents a hydrogen atom, an alkyl radical, an alkenyl radical, a mono- or polyhydroxyalkyl radical in which the hydroxyls are optionally protected in the form of methoxy, ethoxy, acetoxy or acetonide, a phenyl radical optionally substituted with a substituent selected from the group consisting of a halogen atom, a hydroxyl radical, an alkyl radical, a nitro function, a methoxy group and an optionally substituted amine function, or a benzyl or phenethyl radical, optionally substituted with a substituent selected from the group consisting of a halogen atom, a hydroxyl, a nitro function and a methoxy group, or a salt thereof, or an optical or geometrical isomer thereof.