Using CCc1[nH]c(C(=O)Nc2ccc(-c3nc(C(=O)OC)co3)cc2)nc1Cl to produce CCc1[nH]c(C(=O)Nc2ccc(-c3nc(C(=O)O)co3)cc2)nc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.