Using CCOC(=O)c1cccc(C2CCN(C(=O)OC(C)(C)C)CC2)n1 to produce CC(C)(C)OC(=O)N1CCC(c2cccc(C(=O)O)n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.