| 摘要 |
The invention describes the use of organic UV filters of formula (I) wherein R, and R<SUB>2</SUB>, 'independently from each other are hydrogen, C<SUB>1</SUB>-C<SUB>2</SUB>, alkyl, C<SUB>2</SUB>-C<SUB>10 </SUB>alkenyl, C3 C,<SUB>o</SUB>cycloalkyl, C<SUB>3</SUB>-C<SUB>10</SUB>cycloalkenyl, or R, and. R<SUB>2 </SUB>togethér with the nitrogen atom to which they are bonded can form a 5- or 6-membered ring; R<SUB>3 </SUB>and R<SUB>4</SUB>, independently from each other are C<SUB>1</SUB>-C<SUB>20</SUB>alkyl, C2 C,<SUB>o</SUB>alkenyl, C<SUB>3</SUB>-C1<SUB>2</SUB>cycloalkyl, C<SUB>3</SUB>-C<SUB>10</SUB>cycloalkenyl, C<SUB>1</SUB>-C<SUB>12</SUB>alkoxy, C,-C<SUB>20</SUB>alkoxycarbonyl, C<SUB>1</SUB>-C,<SUB>z</SUB>alkylamino, C<SUB>1</SUB>-C<SUB>12</SUB>dialkylamino, aryl, heteroaryl, optionally substituted, substituents which confer solubility in water, chosen from the group consisting of a nitrile group, carboxylate, sulfonate or ammonium radicals; X is hydrogen, COOR<SUB>5</SUB>, CONR<SUB>6</SUB>R<SUB>7</SUB>; R<SUB>5</SUB>, R<SUB>s </SUB>and R<SUB>7</SUB>, independently from each other are hydrogen, C<SUB>1</SUB>-C<SUB>20</SUB>alkyl, C<SUB>2</SUB>-C<SUB>10</SUB>alkenyl, C<SUB>3</SUB>-C,<SUB>0</SUB>cycloalkyl, C3 C<SUB>10</SUB>cycloalkenyl, (Y-0), -Z-aryl; Y is -(CH<SUB>2</SUB>)2, -(CH2)3, -(CH<SUB>2</SUB>)<SUB>4</SUB>-, -CH(CH<SUB>3</SUB>)-CH2; Z is -CH2 CH<SUB>3i </SUB>-CH<SUB>2</SUB>-CH,CH<SUB>3</SUB>, -CH<SUB>2 </SUB>CH<SUB>2 </SUB>CH2 CH<SUB>3</SUB>, -CH(CH<SUB>3</SUB>)-CH,; m is from 0 to 3; n. is from 0 to 4; o is from 1 to 20; for preventing tanning human skin, and their use in cosmetic and pharmaceutical formulations, as anti-wrinkling agents, skin-firming agents and as anti-skin lifting agents.
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