Using CC1(C)CCC(C)(C)c2cc3c(cc21)CCC(=O)N3, COC(=O)c1ccc(CBr)cc1 to produce COC(=O)c1ccc(CN2CCCc3cc4c(cc32)C(C)(C)CCC4(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.