Using CCOC(=O)CN1N=C(c2ccccc2Cl)c2cc(Cl)ccc2N(CC(C)(C)C)C1=O to produce CC(C)(C)CN1C(=O)N(CC(=O)O)N=C(c2ccccc2Cl)c2cc(Cl)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.