Using Cc1c(NC(=O)OCc2ccccc2)cccc1C(c1c[nH]c2cc(Br)ccc12)C(C)N, CCOC(=O)C=O to produce CCOC(=O)C1NC(C)C(c2cccc(NC(=O)OCc3ccccc3)c2C)c2c1[nH]c1cc(Br)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.