申请人:——
公开号:US05000946A1
公开(公告)日:1991-03-19
The invention relates to sunscreen compositions comprising an effective component at least one compound of formula I ##STR1## wherein R.sup.1 is selected from alkyl, alkenyl, alkynyl substituted alkyl, substituted alkenyl, phenyl, substituted phenyl, substituted benzyl, cycloalkyl, cycloalkenyl, substituted cycloalkyl, substituted cycloalkenyl and polymeric groups; R.sup.2 is selected from hydrogen, alkyl and alkoxy; and wherein R.sup.1 and R.sup.2 may form a carbocyclic ring which may be substituted; R.sup.3 is selected from alkyl, sustituted alkyl, alkenyl, substituted alkenyl, alkynyl, phenyl, benzoyl, substituted phenyl, substituted benzyl, substituted benzoyl, cycloalkyl, substituted cycloalkyl, cycloalkenyl, substituted cycloalkenyl, alkanyoyl, substituted alkanoyl, polymeric groups, the group OROROR.sup.9 wherein R is a bivalent hydrocarbon radical and R.sup.9 is alkyl, alkenyl, phenyl benzyl, substituted phenyl, substituted benzyl; R.sup.4 is alkyl or alkoxy; n is an integer from 0 to 4; and R.sup.5 and R.sup.6 are independently selected from alkyl, alkoxy, alkanoyl, alkanoyl substituted by hydroxyl or alkoxycarbonyl and R.sup.5 and R.sup.6 may form a spiro carbocyclic ring which may be substituted with alkyl; and the invention also relates to novel compounds of formula I and to a method of screening a surface from ultraviolet radiation.
本发明涉及防晒剂组合物,其中至少包含一种式I的化合物作为有效成分:##STR1## 其中,R.sup.1选择自烷基、烯基、炔基取代的烷基、取代的烯基、苯基、取代的苯基、取代的苄基、环烷基、环烯基、取代的环烷基、取代的环烯基和聚合物基团;R.sup.2选择自氢、烷基和烷氧基;其中,R.sup.1和R.sup.2可以形成可以被取代的碳环;R.sup.3选择自烷基、取代的烷基、烯基、取代的烯基、炔基、苯基、苯甲酰基、取代的苯基、取代的苄基、取代的苯甲酰基、环烷基、取代的环烷基、环烯基、取代的环烯基、烷酰基、取代的烷酰基、聚合物基团、OROROR.sup.9基团,其中R是二价碳氢基团,R.sup.9选择自烷基、烯基、苯基、苄基、取代的苯基、取代的苄基;R.sup.4选择自烷基或烷氧基;n为0到4的整数;R.sup.5和R.sup.6独立选择自烷基、烷氧基、烷酰基、被羟基或烷氧羰基取代的烷酰基,且R.sup.5和R.sup.6可以形成可以被烷基取代的螺环烷基;本发明还涉及式I的新化合物以及一种筛选表面免受紫外线辐射的方法。