Sunscreen compositions comprising cyclic vinylogous amides

Details Sunscreen compositions comprising cyclic vinylogous amides Sunscreen compositions comprising cyclic vinylogous amides

C - Chemistry, Metallurgy

07

D

260/281, 167/314

C07D 211/70 (2006.01) C07D 215/20 (2006.01) C07D 221/20 (2006.01)

Patent

CA 1310969

ICIA 1331 ABSTRACT Title: Sunscreen Compositions Comprising Cyclic Vinylogous Amides The invention relates to sunscreen compositions comprising an effective component at least one compound of formula I Image I wherein R1 is selected from alkyl, alkenyl, alkynyl substituted alkyl, substituted alkenyl, phenyl, substituted phenyl, substituted benzyl, cycloalkyl, cycloalkenyl, substituted cycloalkyl, substituted cycloalkenyl and polymeric groups; R2 is selected from hydrogen, alkyl and alkoxy; and wherein R1 and R2 may form a carbocyclic ring which may be substituted; R3 is selected from alkyl, substituted 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 OROROR9 wherein R is a bivalent hydrocarbon radical and R9 is alkyl, alkenyl, phenyl benzyl, substituted phenyl, substituted benzyl; R4 is alkyl or alkoxy; ICIA 1331 n is an integer from 0 to 4; and R5 and R6 are independently selected from alkyl, alkoxy, alkanoyl, alkanoyl substituted by hydroxyl or alkoxycarbonyl and R5 and R6 may form a spiro carbocyclic ring which 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.

547903

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