Using C[C@@H](c1ccccc1)N(CCC(C)(O)c1ccccc1)C(=O)OC(C)(C)C to produce C[C@@H](c1ccccc1)N1CCC(C)(c2ccccc2)OC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.