Patent ID: 7777073

Claim:
A hydroxyaryl compound of formula (I), or stereoisomers thereof, for topical application; Wherein, R is selected from alkyl, cycloalkyl, aralkyl, heterocyclic, vinyl, vinyl aryl, vinyl alkyl, vinyl heterocyclic, polyhydroxy alkyl, and polyhydroxy heterocyclic; and R 1 , R 2 , and R 4 are selected from H, alkyl, cycloalkyl, aralkyl, aryl, heterocyclic, OH, O-alkyl, O-aryl, O-heterocyclic, Cl, Br, I, vinyl, vinyl alkyl, vinyl aryl, vinyl heterocyclic, carboxyl, carboxy ester, and polyhydroxy alkyl; and R 3 is —OH, and X is —NHR 6 ; and R 6 is selected from alkyl carboxyl, a salt of alkyl carboxyl, and alkyl carboxy ester.