Research Article

Synthesis of 4,7,9-Trihydroxy[1]benzofuro[3,2-d]pyrimidine-6-carboxamide: Evaluation of Cytotoxicity and Inhibition of Protein Kinase C (CaPkc1)

Figure 3

(a) CSI, CH3CN, 0°C, 10 min and then HCl 5 M, rt, 10 h, 45%. (b) NIS, CH2Cl2, 0°C, 10 min, 60%. (c) CuCN, DMF, 160°C, 6 h, 38%. (d) NaH, BrCH2CO2Et, DMF, rt, 24 h, 90%. (e) NaH, DMF, 0°C, 10 min, 67%. (f) HC (OEt)3, MW, 200°C, 15 min and then NH3/MeOH 7N, MW, 140°C, 15 min, 62%. (g) Pyridine. HCl, MW, 200°C, 10 min, 43%.