Using Cn1ccc2cc(-c3nc(OC(C)(C)C)c(C(=O)OC(C)(C)C)c(OC(C)(C)C)c3Cl)ccc21 to produce Cn1ccc2cc(-c3[nH]c(=O)c(C(=O)O)c(O)c3Cl)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.