Using O=C1c2ccccc2C(=O)N1CCBr, CC(=O)c1c[nH]c2ccccc12 to produce CC(=O)c1cn(CCN2C(=O)c3ccccc3C2=O)c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.