| abstract |
The present invention is represented by the following general formula (I) in which the 5-position is substituted with kojyl succinic acid, kozyl maleic acid, kozyl glutaric acid, kozyl terephthalic acid, kozyl pyridinedicarboxylic acid, kozyl 2,4-hexadienedioic acid, and the like. The present invention relates to a novel kojic acid derivative, a preparation method thereof and a whitening cosmetic composition containing the same as an active ingredient.n n n [Formula 1]n n n n n n n n Wherein R is CH 2 -CH 2 , CH = CH, CH 2 -CH 2 -CH 2 , CH 2 -CH- (CH 3 ) -CH 2 , CH 2 -CH (CH 3 ) 2 -CH 2 , C 6 H 4 -1,4-, C 6 H 4 -1,3-, CH = CHCH = CH, C 5 H 3 N-2,5- or C 5 H 3 N-3,5-. |