Temozolomide compounds, polymers prepared therefrom, and method of treating a disease

A temozolomide compound of structure (I)

• wherein
• X is —O— or —NRa—, wherein Ra is hydrogen or a C1-6 alkyl group;
• L is a divalent C1-12 alkylene group, di(C2-12 alkylene) disulfide group, C2-12 alkylene ester group, C6-20 arylene group, C1-20 alkylene oxide group, or C1-12 alkylene sulfide group;
• n is 0 or 1;
• and
• R1 is a pentafluorophenyl group, a pyridyl disulfide group, a zwitterionic group, a glutathione group, or a thiamine group;
• provided that when R1 is a pentafluorophenyl group, X is —O— and n is 0.