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Reagents: (a) H2NR1R2, DIEA, MeCN, 45 °C. (b) Morpholine, 45 °C. (c) HetB(OR)2, Pd(dppf)Cl2, DME, 2 M Na2CO3, 110 °C. (d) NaOEt, diethyl malonate, reflux. (e) POCl3, reflux. (f) Amine, Pd(OAc)2, BINAP, Cs2CO3, THF, 110 °C.
