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Reagents and conditions: (a) PhC(=O)NH2, 10 mol % CuI, (MeNHCH2)2, K2CO3, toluene, 170 °C; (b) NaOH, 1,4-dioxane, 110 °C; (c) Lawesson’s reagent, THF, MW at 150 °C; (d) Br(CH2)3NHBoc, KOH, TBAI (cat.), toluene, H2O, 110 °C; (e) 4 N HCl in 1,4-dioxane, MeOH, rt.
