Using CC1(C)OB(c2ccc3cn(Cc4ccccc4)nc3c2)OC1(C)C, Nc1ncnn2ccc(Br)c12 to produce NC1=C2C(c3ccc4cn(Cc5ccccc5)nc4c3)=CCN2NC=N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.