Patent ID: 7446230

Claim:
A compound, selected from the group consisting of a dibenzoylmethane-based compound of formula (I), a salt of the dibenzoylmethane-based compound, and a solvate of the dibenzoylmethane-based compound, wherein: R 1 , R′ 1 , R 2 , R′ 2 , R 3 , R′ 3 , R 4 and R′ 4 each independently represents a member selected from the group consisting of: a hydrogen atom; a linear or branched alkyl group containing from 1 to 4 carbon atoms; a linear or branched alkenyl group containing from 1 to 4 carbon atoms; a linear or branched alkynyl group containing from 1 to 4 carbon atoms; a C 1 to C 4 alkoxy group; a halogen atom; a hydroxyl group; an amino group; a nitro group; an amido group; and a carbonyl group of formula —CO—Y where Y represents a halogen atom, a hydroxyl group, an —OR group or an —SR group, where R represents a C 1 to C 4 alkyl group; R 5 and R′ 5 each independently represents a member selected from the group consisting of: a hydrogen atom; a linear or branched alkyl group containing from 1 to 4 carbon atoms; and a linear or branched, saturated or unsaturated acyclic carbon-based chain containing from 5 to 20 carbon atoms; and R 5 is different from R′ 5 .