BIS[1,3]DIOXOLO[7,8:4',5';24,25:4',5'][5,6]FULLERENO -C60-IH-[1,9:4',5']THIAZOL-2'(3'H)-ONE,11,27-BIS[(TERT-BUTYL)DIOXY] -11,27-DIHYDRO-2',2',2',2'-TETRAMETHYL-