Using CNc1nc(-c2cccnc2)nc2ccc(Br)cc12, COc1ccc(B(O)O)cn1 to produce CNc1nc(-c2cccnc2)nc2ccc(-c3ccc(OC)nc3)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.