Patent · US Active

5-hydroxy-2-methyl-4H-pyran-4-one esters as novel tyrosinase inhibitors

US8183398B2 · kind B2 · utility

0Cited by

1References

9Claims

0Family size

Assignee

Eastman Chemical Company · US

Inventors

Michael Fitzpatrick Wempe · Aurora, US
Jeffrey Michael Clauson · Johnson City, US
Liu Deng · Kingsport, US

Key dates

Filing date	Apr 7, 2010
Grant date	May 22, 2012
Priority date	—
Expiry date	Apr 25, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D309/40
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Skin brightening compositions based on esters of 5-hydroxy-2-methyl-4H-pyran-4-one. Also disclosed are methods of making the compositions as well as methods of using the compositions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.