Patent ID: 7919497

Claim:
A compound having the structure of formula I: wherein R 1 , R 4 , and R 6 , are each separately selected from the group consisting of a hydrogen atom, a halogen atom, and saturated C 1 -C 24 alkyl, unsaturated C 2 -C 24 alkenyl, cycloalkyl, cycloalkenyl, alkoxy, cycloalkoxy, aryl, substituted aryl, heteroaryl, substituted heteroaryl, amino, substituted amino, nitro, azido, substituted nitro, phenyl, and substituted phenyl groups, hydroxy, carboxy, —CO—O—R 7 , cyano, alkylthio, halogenated alkyl including polyhalogenated alkyl, and halogenated carbonyl; R 1 ′ and R 1 ″ are each independently selected from the group consisting of a hydrogen atom, a halogen atom, and saturated C 1 -C 24 alkyl, unsaturated C 2 -C 24 alkenyl, cycloalkyl, cycloalkenyl, alkoxy, cycloalkoxy, aryl, substituted aryl, heteroaryl, substituted heteroaryl, amino, substituted amino, nitro, azido, substituted nitro, phenyl, and substituted phenyl groups, hydroxy, carboxy, —CO—O—R 7 , cyano, alkylthio, halogenated alkyl including polyhalogenated alkyl, and halogenated carbonyl, wherein R 7 is selected from a hydrogen atom, a halogen atom, and saturated C 1 -C 24 alkyl, unsaturated C 2 -C 24 alkenyl, cycloalkyl, cycloalkenyl, alkoxy, cycloalkoxy, aryl, substituted aryl, heteroaryl, substituted heteroaryl, amino, substituted amino, nitro, azido, substituted nitro, phenyl, and substituted phenyl groups; R 2 and R 3 are each hydrogen; m is an integer equal to zero, one or two; X 1 and X 2 are oxygen; Y is oxygen; Z, for each separate m, if non-zero, and Z 1 , Z 2 , Z 3 and Z 4 are each separately selected from a carbon atom, a sulfur atom, a nitrogen atom or an oxygen atom; and the dashed bonds may be either single or double bonds, provided that the ring formed by Z m -Z 4 is an aryl or heteroaryl ring.