A photoactivated prodrug

A photolabile derivative (1) of the anticancer drug, 5-fluorodeoxyuridine (2), was designed and synthesized as a model prodrug. Photolysis of 1 with long-wavelength UV light rapidly released 2 in solution. While compound 1 alone is nontoxic to cells, the presence of both 1 and UV irradiation (λ = 350 nm) resulted in potent inhibition of cell growth.