| abstract |
The present invention provides novel compounds of formula (I)n n n Formula In n n n n n n n Wheren n n R 1 , R 2 and R 3 are independently hydrogen, OR 4 , C 1 -C 6 alkyl or C 2 -C 6 alkenyl,n n n R 4 is hydrogen, C 1 -C 6 alkyl or C 2 -C 6 alkenyl,n n n -N- (AA) represents a residue of an amino acid or peptide linked across the N-terminus of an amino acid or peptide, the peptide consists of 2 to 6, ie 2, 3, 4, 5 or 6 amino acids,n n n The C-terminus of the amino acid or peptide is optionally or not esterified with a C 1 -C 16 hydrocarbon residue,n n n n is an integer of 1-5.n n n In particular, the compounds are useful for cosmetic use. |