abstract |
Composed of formula: in which R 1 corresponds to the formula: and R 2 is C 8 -Cāā alkoxy or mono- or di-alkylamino or corresponds to the formula: where n = 0 or 1; R 4 denotes H, OH or C 1 -C 6 alkoxy; R 5 denotes H or COOR 3 and R 3 is C 4 -Cāā alkyl.n n n Application of these compounds for the protection of the skin and the hair against ultraviolet radiation. |