Using CCCC(N)=O, O=C(Nc1cc2ccccc2cn1)c1ccccc1NCc1ccnc(Br)c1 to produce CCCC(=O)Nc1cc(CNc2ccccc2C(=O)Nc2cc3ccccc3cn2)ccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.