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Reactions and conditions: (a) AcOH, EtOH, reflux; (b) Pd(dppf)Cl2·DCM, K3PO4, 1,4-dioxane, H2O, 150 °C, 30 min., μW, 56-73% (2 steps); (c) NIS, DMF, rt, 73%; (d) R3B(OH)2, Pd(dppf)Cl2·DCM, K3PO4, 1,4-dioxane, H2O, 120 °C, 30 min., μW, 14-52%.
