Using O=C(O)C(CCc1ccccc1)NC1CCc2ccccc2NC1=O, N#CCBr to produce N#CCN1C(=O)C(NC(CCc2ccccc2)C(=O)O)CCc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.