AMINO SUBSTITUTED HYDROXYPHENYL BENZOPHENONE DERIVATIVES

WIPO Patent Application WO2004052837

A3

Described are amino substituted hydroxyphenyl benzophenone derivatives of formula (I), wherein R1, and R2 independently from each other are; C1,-C20alkyl; C2-C20alkenyl; C3-C10,cycloalkyl; C3-C10cycloalkenyl; or R1, and R2 together with the linking nitogen atom form a 5- or 6-membered heterocyclic ring; n1 is a number from 1 to 4; when n1=1, R3 is a saturated or unsaturated heterocyclic radical; hydroxy-C1-C5alkyl; cyclohexyl optionally substituted with one or more C1,-C5alkyl; phenyl optionally substituted with a heterocyclic radical, aminocarbonyl or C1-C5alkylcarboxy; wenn n1 is 2, R3 is an alkylene-, cycloalkylene- or alkenylene radical which is optionally substituted by a carbonyl- or carboxy group; o R3 together with A forms a bivalent radical of the formula (Ia), wherein n2 is a number from 1 to 3; when n1 is 3, R3 is an alkanetriyl radical; wenn n1 is 4, R3 is an alkanetetrayl radical; A is -O-; or -N(R5)-; and R5 is hydrogen; C1-C5alkyl; or hydroxy-C1-C5alkyl. The compounds are useful as UV filters in sunscreen applications.

HAASE JUERG (CH)
EHLIS THOMAS (DE)
BORSOS ELEK (CH)
MUELLER STEFAN (DE)

PCT/EP2003/050937

September 10, 2004

December 03, 2003

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CIBA SC HOLDING AG (CH)
HAASE JUERG (CH)
EHLIS THOMAS (DE)
BORSOS ELEK (CH)
MUELLER STEFAN (DE)

A61K8/42; A61K8/44; A61K8/49; A61Q17/04; C07C229/52; C07C237/32; C07C237/34; C07C237/40; C07C237/42; C07D277/46; C07D277/66; C07D295/18; C07D295/192; C07D313/12; (IPC1-7): C07C229/52; C07C237/42; C07C237/32; C07C237/34; C07C237/40; C07D295/18; C07D277/66; C07D277/46; C07D313/12; A61K7/44

EP1046391A2

2000-10-25

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