use of aminophenylbenzotriazole derivatives to protect skin and humans and animals from the harmful effects of UV radiation, and cosmetic compositions of these derivatives.
use of aminophenylbenzo-triatol derivatives to protect skin and humans and animals from the harmful effects of UV radiation, and cosmetic compositions of such derivatives. The present invention relates to (2'-hydroxy-4'-aminophenyl) benzotriazole derivatives of formula R1 and R4 independently of one another are hydrogen； C1 -C28 alkyl； C1 -C28 alkoxy； c2 -C28 alkenyl； c2 -C28 alkynyl； C3 -C12 cycloalkyl； c3 c12 cycloalkenyl； C7-C28 aralkyl； C 1 -C 20 -heteroalkyl； C3 -C12 cycloheteroalkyl； or C2 -C28 alkenyl and C2 -C28 alkynyl are unsubstituted or may be substituted by at least one C1 -C5 alkyl, C1 -C5 alkoxy or hydroxy； r2 and r3m independently of each other are hydrogen； C1 -C28 alkyl； c2 -C28 alkenyl； c2 -C22 alkynyl； C3 -C12 cycloheteroalkyl； C5-C16-heteroaralkyl； and wherein C1-C28 alkyl, C1-C28 alkoxy, C2-C28 alkenyl and C2-C28 alkynyl are unsubstituted or may be substituted by at least one C1-C5 alkyl, C1-C5 alkoxy or hydroxy or co-R5； or r 2 and r 3 together with the binding nitrogen form a 5- to 7-membered monocyclic, carbocyclic or heterocyclic ring； R5 is C1 -C28 alkyl； c2 -C28 alkenyl； c2 -C28 alkynyl； C3 -C12 cycloalkyl； C3 -C12 cycloalkenyl； c7 c20 aralkyl； C 1 -C 20 -heteroalkyl； C3 -C12 cycloheteroalkyl； C 1 -C 5 alkoxycarbonyl-C 1 -C 5 alkyl； or C 5 -C 16 -heteroaralkyl； to protect human and animal skin and skin from harmful effects of UV radiation.uso de derivados de aminofenilbenzo-triatol para proteger pele e pelos humanos e animais dos efeitos danosos de radiação uv, e composições cosméticas desses derivados. a presente invenção refere-se a derivados de (2<；39>；-hidróxi-4<；39>；-aminofenil)benzotriazol de fórmula r1 e r4 um independentemente do outro, são hidrogênio； c1-c28 alquila； c1-c28 alcóxi； c2-c28 alquenila； c2-c28 alquinila； c3-c12 cicloalquila； c3 c12 cicloalquenila； c7-c28 aralquila； c1-c20-heteroalquila； c3-c12 ciclo-heteroalquila； ou c2-c28 alquenila e c2-c28 alquinila são não-substituídos ou poderão ser substituídos por pelo
