Using CCOC(=O)[C@@H]1CCCN(CCBr)C1, O=C1c2ccccc2C(=O)N1O to produce CCOC(=O)[C@@H]1CCCN(CCON2C(=O)c3ccccc3C2=O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.