| abstract |
(57) [Summary] (Modified) [Purpose] To provide a strong UV-blocking compound used in cosmetics. [Structure] For the purpose of sunscreen, 6,6-dimethyl-2-acylcyclohexene-4 represented by the general formula (I) -The use of ene-1,3-dione derivatives, a sunscreen cosmetic composition containing at least one of the derivatives as an active ingredient, and steam distillation or solvent extraction of leaves of Melaleuca carcapti. R 1 and R 2 in the formula (I), which are formed by separating and purifying Is CH 3 and R 3 is CH 3 O. [In the formula, R 1 is a C 1 -C 6 alkyl group, R 2 is a hydrogen atom or a C 1 -C 6 alkyl group, and R 3 is a hydrogen atom, a hydroxy group or a C 1 -C 6 alkoxy group. is there〕 |