Alexander Schlifke-Poschalko,Christine Mendrok-Edinger,Horst Westenfelder
申请号：
US13521576
公开号：
US08883829B2
申请日:
2011.01.13
申请国别(地区):
US
年份:
2014
代理人:
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.
