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Reaction Conditions: a) phthalic anhydride, AcOH, reflux, 1 h, 83%; b) SOCl2, DMF(cat.), reflux, 1 h; aniline, DIPEA, CH2Cl2, rt, 1 h, 80%; c) hydrazine hydrate, THF, 60 C, 16 h; d) SOCl2, DMF(cat.), reflux, 2 h; e) DIPEA, CH2Cl2, rt, 2 h; f) K2CO3, water: dioxane (1:1), Pd(TPP)2Cl2, boronic acid.
