1,8-Dihydroxy-9-anthrones derivatives substituted in the 10-position by an unsaturated radical and their use in human and veterinary medicine
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United States of America Patent
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Aug 7, 1984
Grant Date -
N/A
app pub date -
Feb 8, 1982
filing date -
Feb 10, 1981
priority date (Note) -
Expired
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Abstract
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, R.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, or R.sub.1 and R.sub.2 taken together form a radical --CO--, and n is 0 or 1, with 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, and the isomers of the compounds of formula (I) and mixtures thereof.
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