Using CCOC(=O)C(C)(C)CCCCCC(c1ccccc1Cl)N1CCc2[nH]ccc2C1 to produce CC(C)(CCCCCC(c1ccccc1Cl)N1CCc2[nH]ccc2C1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.