New synthetic compounds, process for preparing them and use in cosmetic and dermopharmaceutical preparations for improving suntanning (bronzing)

摘要

The patent describes the synthesis and use of new tyrosine derivatives as precursors of natural melanin, stimulators of suntanning and anti-free-radical agents having, in particular, the advantage of being water-resistant. They are in particular N-oleoyl-L-tyrosine and its homologues. The products are intended for cosmetics and dermopharmaceuticals.