1,8-Dihydroxy-9-anthrones derivatives substituted in the 10- position by an unsaturated radical used in human medicine

摘要

1,8-dihydroxy-9-anthrone derivatives, substituted in the 10- position by an unsaturated radical, are described which have utility as ingredients in human and veterinary pharmaceutical and cosmetic preparations and which are compounds of the structural formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a --CO.sub.2 R'.sub.2 radical,PPR.sub.2 and R'.sub.2 identical or different, represent a hydrogen atom, a linear or branched chain alkyl radical having 1 to 6 carbon atoms, a cycloalkyl radical having 4 to 6 carbon atoms or a benzyl radical,PPor R.sub.1 and R.sub.2 taken together form a radical --CO--, andPPn is 0 or 1,P Pwith the proviso that when n is 0 and R.sub.1 is --CO.sub.2 R'. sub.2, R.sub.2 and R'.sub.2 do not simultaneously represent the radical CH.sub.3,PPand the isomers of the compounds of formula (I) and mixtures thereof.