Using CC(C)(C)OC(=O)n1ccc2cc(Br)ccc21, CCCC1(C=O)CCCN1C(=O)OC(C)(C)C to produce CCCC1(C(O)c2ccc3c(ccn3C(=O)OC(C)(C)C)c2)CCCN1C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.