Using OC(CBr)CCBr, NC1CCCC2C1NC(=O)C(=O)N2Cc1ccccc1 to produce O=C1NC2C(N3CCC(O)C3)CCCC2N(Cc2ccccc2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.