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US 2014/0348768 A1Published application
Acridinedione derivatives for treating pigmentation disorders and ageing of the skin
AssigneePierre Fabre Dermo-Cosmetique
InventorsStéphane Poigny, Françoise Belaubre
Life of this patent
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Abstract
The present invention relates to a compound of general formula (I) in which: —R1 and R2 are simultaneously or independently H, OH, OCH3 or a C1-C5 alkyl radical, —R3 and R4 are simultaneously CH3, —or R3 is H and R4 is CH3, CH2CH3 or an isopropyl radical or a phenyl radical, —R5 is a C4-C24 alkyl radical or a 3-phenylpropanyl or 2,2-diphenylethanyl radical.
Claims23
A compound of general formula (I):
- where:
- R1 and R2 are simultaneously or independently H, OH, OCH3 or a C1-C5 alkyl radical;
- R3 and R4 are simultaneously CH3;
- or R3 is H and R4 is CH3, CH2CH3 or an isopropyl radical or phenyl radical;
- R5 is a C4-C24 alkyl radical or 3-phenylpropanyl or 2,2-diphenylethanyl radical.
2 more elements
A compound of general formula (I′):
- where:
- R1 and R2 are simultaneously or independently H, OH, OCH3 or a C1-C5 alkyl radical;
- R3 and R4 are simultaneously CH3;
- or R3 is H and R4 is CH3, CH2CH3, an isopropyl radical or phenyl radical;
- R5 is H, a C1-C24 alkyl radical, benzyl radical, phenethyl radical or 3-phenylpropanyl or 2,2-diphenylethanyl radical;
- for topical use thereof as medicinal product or cosmetic active ingredient.
3 more elements
Dependencies are inferred from the claim text.