| abstract |
Compounds of formula (I), or physiologically functional derivatives thereof, n nwherein: n R 1 , R 2 , R 3 and R′ 3 are independently selected from H or lower alkyl; and R 4 , R 5 , R 6 and R 7 are independently selected from H, electron withdrawing groups (such as F, Cl, Br, I, OCF 3 , carboxyl groups, acetal groups, electron deficient aryl groups), lower alkyl groups, lower alkoxy groups, aryl groups or aryloxy groups, wherein at least one of R 4 , R 5 , R 6 and R 7 is selected from an electron withdrawing group, may be used in methods of therapy, particular in treating neoplastic diseases in methods of GDEPT, ADPET, PDEPT and PDT. |