| abstract |
Compounds of the formula wherein n is 1 or 2; Z mercapto or a radical -S (O) m , m 0, 1 or 2; R lower alkyl, lower alkenyl, lower alkynyl, lower alkoxy lower alkyl, halogen lower alkyl, lower carbalkoxy lower alkyl or, if m is 1 or 2, also lower alkoxy, hydroxy, means mono- or di-lower alkylamino, can be used as active ingredients in preparations for the topical treatment of light-damaged skin. |