Acridinedione derivatives for treating pigmentation disorders and ageing of the skin
US9493421B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Dec 21, 2012 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Dec 21, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/40
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.