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US 8,557,793 B2Granted
Theanine derivative, preparation method thereof, and use thereof for alleviating acne
AssigneeAmorepacific Corporation
InventorsJae Won Yoo, Yu Na Yun, Seo Young Kim, Jin Young Lee, Jun Oh Kim, Jun Cheol Cho
Life of this patent
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Abstract
The present invention relates to a theanine derivative, a preparation method thereof, and a use thereof for anti-acne treatment, having a selective inhibitory effect on Propionibacterium acnes in the skin.
Claims10
A theanine derivative represented by the following formula 1 or 2:
- wherein R1 and R2 are each hydrogen, methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, or t-butyl,
- wherein R1 and R2 are each hydrogen, methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, or t-butyl.
A method for preparing a theanine derivative represented by the following formula (1) or (2):
- wherein R1 and R2 are hydrogen, methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, or t-butyl,
- the method comprising:
- heating the compound A and maltose in a reaction solvent under agitation to activate a reaction;
- and
- precipitating a product in the reaction solvent.
2 more elements
Dependencies are inferred from the claim text.