Using CC(C)(C)Cn1c(CBr)cc2cnc(C#N)nc21, COc1ccc(C2CCNCC2)c(OC)c1 to produce COc1ccc(C2CCN(Cc3cc4cnc(C#N)nc4n3CC(C)(C)C)CC2)c(OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.