Patent ID: 8003802

Claim:
A compound of formula (XXIV): wherein: R 1 is selected from the group consisting of hydrogen, an unsubstituted or substituted C 1-6 alkyl, and an unsubstituted or substituted aryl; R 2 is selected from the group consisting of hydrogen, an unsubstituted or substituted C 1-6 alkyl, an unsubstituted or substituted aryl, and an unsubstituted or substituted arylalkyl; and R 3 is selected from the group consisting of an unsubstituted or substituted C 1-24 alkyl, an unsubstituted or substituted C 1-24 alkenyl, an unsubstituted or substituted C 1-24 alkynyl, an unsubstituted or substituted aryl, an unsubstituted or substituted heteroaryl, an unsubstituted or substituted C 3-24 cycloalkyl, an unsubstituted or substituted C 3-24 cycloalkenyl, an unsubstituted or substituted C 3-24 cycloalkynyl, an unsubstituted or substituted aryl(C 1-6 alkyl) and an unsubstituted or substituted heteroaryl(C 1-6 alkyl).