| abstract |
A compound is disclosed having the general formula:n n<IMAGE>n in whichn X1 is hydrogen or a radical Y,n X2 is hydrogen, a halogen, a C1-C4 alkyl or alkoxy radical or a radical Y or Z,n X3 is hydrogen, a halogen, a C1-C4 alkyl or alkoxy radical or a radical Y or Z,n or X2 and X3 together form an alkylenedioxy group in which the alkylene group contains 1 or 2 carbon atoms; Y is a sulphonamido moiety which is connected via the S atom and which is N-substituted by an amino acid residue;n and Z is the group Z1 or Z2 whereinn Z1=n n<IMAGE>n in which Y is as defined above, andn Z2=n n<IMAGE>n provided that not all the groups X1, X2 and X3 are the same and that n n alpha ) when X1 is hydrogen, X2 and X3 are different from each other, neither is the group Z2 and one of X2 and X3 is Y or Z1; n beta ) when X1 is Y, X2 and X3 are not simultaneously Y or Z, and n gamma ) when R1 or R2 in the radical Y is a divalent group of formula c), in the radical Y, only one of the groups X1, X2 and X3 is Y and neither X2 nor X3 is Z1. n n<??>These compounds have sun-screening properties and may be used in cosmetics. |