Xanthenedione derivatives for the treatment of pigmentation and skin ageing disorders

US8906416B2 · kind B2 · utility

Assignee

• PIERRE FABRE DERMO-COSMETIQUE · FR

Inventors

• Stéphane Poigny · Saubens, FR
• Françoise Belaubre · Cugnaux, FR

Key dates

• Filing date: Jul 8, 2011
• Grant date: Dec 9, 2014
• Expiry date: Jul 8, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07H15/26
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to compound of generic formula (I) in which: R1 and R2 represent: OH, a hydrogen atom, a C1-C6 alkyl radical a C1-C6 alkoxy radical, a halogen, or OCOR3; R3 represents: a C1-C24 alkyl radical a C12-C24 alkenyl radical comprising at least one unsaturation; R4 represents: COR5, a glucide substituted or not by one or more acetyl radical(s); R5 represents: a C10-C24 alkyl radical or a C12-C24 alkenyl radical comprising at least one unsaturation; R6 and R7 represent:—simultaneously a hydrogen atom or a methyl radical, or—when R6 represents a hydrogen atom, R7 represents a C1-C6 alkyl radical or a phenyl substituted or not by one or more C1-C3 alkoxy radical(s) or one or more halogen(s) or—R6 and R7 are bonded together and form a C3-C6 cycloalkyl, and pharmaceutically or cosmetically acceptable salts.