| titleOfInvention |
Ester compound of 3,4,5-trimethoxy phenylacetic acid, 3,4,5-trimethoxy cinnamic acid or 3,4,5-trimethoxy hydrocinnamic acid and preparation method thereof, and whitening cosmetic composition containing said compound |
| abstract |
The present invention is an ester of 3,4,5-trimethoxy phenylacetic acid, 3,4,5-trimethoxy cinnamic acid or 3,4,5-trimethoxy hydrocinnamic acid represented by the following general formula (I) It relates to a compound, a preparation method thereof, and a whitening cosmetic composition comprising the compound as an active ingredient. Ester compounds of 3,4,5-trimethoxy phenylacetic acid, 3,4,5-trimethoxy cinnamic acid or 3,4,5-trimethoxy hydro cinnamic acid provided by the present invention inhibit melanin production There is an effect to, and the cosmetic composition containing it also has the effect of improving the pigmentation of the skin, it can be used as a whitening cosmetic.n n n n n n n n n n (Wherein R 1 is —CH 2 —, —CH═CH— or —CH 2 —CH 2 , and R 2 is thymyl or carvacryl) |