Using CC(C)(C)OC(=O)N(CCO)[C@H]1CC[C@H](C)CC1, Clc1ccccc1CBr to produce CC1CCC(N(CCOCc2ccccc2Cl)C(=O)OC(C)(C)C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.