Design of novel N-(2,4-dioxo-1,2,3,4-tetrahydro-thieno[3,2-d]pyrimidin-7-yl)-guanidines as thymidine phosphorylase inhibitors, and flexible docking to a homology model.
Price ML, Guida WC, Jackson TE, Nydick JA, Gladstone PL, Juarez JC, Donate F, Ternansky RJ, Bioorg Med Chem Lett, 2003 Jan 6 - link