10-aryl-1,8-dihydroxy-9-anthrones and their esters, process for preparing same, and use of same in human and veterinary medicine and in cosmetics

摘要

Mono, di and tri-esters of 1,8-dihydroxy-10-phenyl-9-anthrone or -9-anthranol have the formula (I) wherein p is 0 or 1, (a) when p=0, t=1 and R2 represents hydrogen or -COR3, (b) when p=1, t=0 and R1 and R2 each independently represent hydrogen or -COR3, R3 represents linear or branched alkyl having 1-17 carbon atoms, cycloalkyl, phenyl or phenyl substituted by lower alkyl, lower alkoxy, halogen, a nitro function, -CF3 or a hydroxyl function, and mixtures of said esters. These esters are prepared by reacting 1,8-dihydroxy-10-phenyl-9-anthrone with an activated form of an acid. The esters are useful in human or veterinary medicine and in cosmetic compositions.