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 solubiliser 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 C5-10cydoalkyl.
本发明涉及新型苯并三唑及包含这些苯并三唑的新型局部组合物。此外,该发明涉及将新型苯并三唑用作
二苯甲酮衍
生物(如丁基甲氧基
二苯甲酮)的
光稳定剂和溶解剂。在一个方面,该发明涉及公式(Ia)中R2为氢;C1-30烷基;C1-5烷氧基;C1-5烷氧羰基;C5-7环烷基;C6-10芳基或芳基烷基;R3为氢;C1-5烷基;C1-5烷氧基或卤素,优选氢或
氯;R4为氢或C1-5烷基;R5为C1-30烷基或C5-10环烷基。