Merck Patent Gmbh

Corinna Wirth

Herwig Buchholz

Christophe Carola

Ralf Rosskopf

Rosane Alves Fontes

The invention relates to complexes of certain flavonoid derivatives, of the formula I compositions which comprise such derivatives, corresponding processes for the preparation of the flavonoid derivatives or of compositions comprising same, and the use thereof, in particular for the care, preservation or improvement of the general state of the skin or hair. Formula (1), in which Zto Zand Zto Zeach, independently of one another, denote H, OH, CHCOO, alkoxy, hydroxyalkoxy, mono- or oligoglycoside radicals and where the alkoxy and hydroxyalkoxy groups may be branched and unbranched and can have 1 to 18 C atoms. Formula (II) denotes, Zis a mono- or the oligoglycoside radical, where bonded to this glycoside radical, in each case via an &#x2014;O&#x2014; group, is at least one radical selected from certain benzo molecule. 

Flavonoid complexes with cyclodextrins

The invention relates to a novel flavonoid derivative, to an extract comprising the flavonoid derivative, to the cosmetic and pharmaceutical use thereof, to preparations comprising the flavonoid derivative or extract, and to a process for the preparation of the flavonoid derivative or extract.

Growing community of inventors

Darmstadt, Germany

Corinna Wirth