发明名称 |
2-Phenyl-1,2,3-benzotriazoles for UV radiation absorbance |
摘要 |
The present invention relates to novel benzotriazoles and to novel topical compositions comprising these benzotriazoles. Furthermore, the invention relates to the use of the novel benzotriazoles as photostabilizer and solubilizer for dibenzoylmethane derivatives such as Butyl Methoxydibenzoylmethane. In one aspect the invention relates to novel benzotriazoles of formula (Ia) wherein R2 is hydrogen; C1-30alkyl; C1-5alkoxy; C1-5alkoxycarbonyl; C5-7cycloalkyl; C6-10aryl or aralkyl; R3 is hydrogen; C1-5alkyl; C1-5alkoxy or halogen, preferably hydrogen or Cl; R4 is hydrogen or C1-5alkyl; R5 is C1-30alkyl or C5-10cycloalkyl. |
申请公布号 |
EP2523942(A1) |
申请公布日期 |
2012.11.21 |
申请号 |
EP20110700175 |
申请日期 |
2011.01.13 |
申请人 |
DSM IP ASSETS B.V. |
发明人 |
SCHLIFKE-POSCHALKO, ALEXANDER;MENDROK-EDINGER, CHRISTINE;WESTENFELDER, HORST |
分类号 |
A61K8/35;A61K8/40;A61K8/49;A61Q17/04;C07D249/20 |
主分类号 |
A61K8/35 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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